My colleague Ben Nicholson-Smith pointed out, rightly, that September trades haven't amounted to much in the past decade. But there was a glorious summer-turned-fall for trades back in 1993. As Yasir Arafat and Yitzhak Rabin shook hands on the White House lawn, seemingly ending Middle Eastern conflict, Major League teams came together to help one another through the season's final month.

Sure, everyone knew that these relationships were as transitory as a momentary coupling with a beautiful stranger you meet on a cruise. But let's revisit the brief, sweet memories that resulted.

On September 1, the Chicago White Sox traded reliever Donn Pall to the Philadelphia Phillies for catcher Doug Lindsey. Though the Phillies held a 9.5 game lead over the Montreal Expos on September 1, a thin bullpen needed reinforcements. Pall certainly provided quality innings for Philadelphia, pitching to a 2.55 ERA over 17 2/3 innings. The hard-charging Expos managed to cut that lead to three games by season's end, foreshadowing further improvement the following season. Were Pall's innings the difference between winning and losing the division? Perhaps not, but they helped provide insurance for a closer-than-expected finish.

A week later, the Baltimore Orioles found themselves in a surprisingly strong position. Down six games in the AL East as September began, Baltimore had rallied to within a game of the first-place Blue Jays. Needing a hitter to help them with the stretch run, the Orioles sent minor leaguers Stanton Cameron and Terry Farrar to Pittsburgh for outfielder Lonnie Smith. For Smith, the chance to play left field and designated hitter on a contending team one last time helped spark him to a 139 OPS+ with Baltimore in 32 plate appearances. Though the Orioles faded, Lonnie Smith certainly didn't.

The significant dealing still wasn't finished, even when the month was more than half over. On September 17, the Texas Rangers trailed the AL West-leading White Sox by just 4.5 games. In an effort to bolster the team's offense, Texas traded minor leaguer Dave Gandolph to the Houston Astros for outfielder Chris James. The move paid dividends immediately, with James homering twice in his very first game with Texas. He went on to hit .355/.412/.677 in 34 plate appearances. Though Texas fell short of division title, James provided 0.7 WAR – an amazing total for someone on the active roster for a total of 15 days.

That same day, the Yankees, fading from the AL East race, decided to add another arm to a young, tiring starting rotation. Though the Phillies also had interest in Frank Tanana – after all, Donn Pall can't win pennants all by himself – the Yankees managed to snag Tanana from the crosstown Mets for reliever Kenny Greer. The once-great strikeout pitcher still knew how to get hitters out with junk at age 40. Though he failed to win his three starts with the Yankees, he pitched into the seventh inning all three times, posting a quality start in each outing. The Yankees failed to catch the Blue Jays, But Tanana's 19 2/3 innings of 3.20 ERA pitching certainly helped keep things close.

Will history repeat itself? Perhaps Chris Capuano will go across town to a contending Yankees team? Maybe the White Sox will send Jesse Crain to the Phillies? No matter how late it gets, don't assume the deals won't have an impact. After all, you'll never forget that night at sea, no matter how brief the interlude.

Since the Philadelphia Phillies traded four prospects for Hunter Pence last month, things couldn't be going better – Pence is at .344/.408/.557 in his first 16 games. Still, the price was awfully steep for two years and two months of Pence, a 28-year-old corner outfielder with a career OPS+ of 118.

The four players Houston received – Jarred Cosart, Jonathan Singleton, Domingo Santana and Josh Zeid – represented three of the top nine Phillies prospects heading into the season, according to Baseball America, with Zeid checking in at 23rd. If the Phillies win another World Series or two, all that is likely to be forgotten. But when compared to Rondell White, a strikingly similar player in terms of value at the time he was traded, it is hard to feel as if the Phillies got a proper return.

When the Montreal Expos traded Rondell White in July 2000, he was 28 years old, just like Pence is now. His career OPS+ at the time was 113, lower than Pence's 118, though his offensive WAR was virtually identical: 12.4 in roughly 3,000 plate appearances, to Pence's 12.6 in roughly 3,000 plate appearances. Add defense into the equation, though, and White's overall WAR jumps to 17.7; Pence's falls to 11.0.

With both White and Pence a year and two months from free agency, it becomes clear that White was at least as valuable an asset at the time of the deal. So if the Astros got four prospects, including three elite ones, what did Montreal get from the Chicago Cubs for Rondell White?

Scott Downs. Just Scott Downs. Already 24 years old, having been traded from the Cubs to the Twins and then back, Downs was deemed the proper compensation for the Hunter Pence of his time, Rondell White. This is no knock on Downs, who has since enjoyed a strong career and become one of the best, most consistent left-handed relievers in the game.

But the Astros didn't deal for Cosart, Singleton or even Santana hoping for the value of a middle reliever. That's what they are probably hoping for from Zeid, the fourth-best player in the deal. Downs didn't help matters by pitching just three innings for the Expos, then having Tommy John surgery knock him out until 2002.

The deal worked out somewhat well for the Cubs, though White didn't become the stretch-run contributor the Cubs wanted. He played in 19 games, all starts, before injury ended his season on August 26. At that time, the Cubs were at the outer edges of the 2000 pennant chase, 8.5 games behind the Cardinals in the NL Central and 10 games behind the Mets for the Wild Card. But by the time White gave way to a September of Ross Gload and Roosevelt Brown in left field, the Cubs were all but eliminated.

White contributed greatly to a 2001 Cubs team that finished 88-74, a respectable third place in the NL Central. His OPS+ of 134 was second among all Cub regulars to Sammy Sosa's 203, and his WAR of 2.0 placed him in a tie for third on the team with Bill Mueller. Still, White's injury problems limited him to just 95 games and after the season, the Cubs saw him sign as a free agent with the New York Yankees.

Obviously, the major advantage Pence has over White is durability, with at least 156 games played in each of his full seasons. The extent to which White's defensive value evens that out is noteworthy, however. Had the Phillies merely dealt a 24-year-old Scott Downs – say, Kyle Kendrick – for a player of Pence/White's caliber, the trade would have been an outright heist. Seeing four prospects go in such a deal could be remembered very differently, however.

Lost in all the excitement, opinion and analysis following today's Carlos Beltran trade is just how rare it is for a player having a season as strong as Beltran's to be dealt. Since 1980, there have been 1,371 outfielder seasons that qualified for the batting title. Ranked by OPS+, Beltran's 151 mark ranks 99th out of all of them – and second among outfielders traded mid-season.

So the Mets' trading stance – holding out for top-tier talent and eventually getting Zack Wheeler – makes a great deal of sense. But it is also worth exploring: has the acquisition of outfield offense near the caliber of Beltran been a difference-maker for teams?

The only outfielder with a higher OPS+ to be traded mid-year since 1980 was Gary Sheffield. He posted a 155 OPS+ for the Marlins and Dodgers during a 1998 season that ranks 77th among outfield offensive seasons since 1980.

The deal isn't overly illustrative of what Beltran can provide for a number of reasons. For one thing, Sheffield was traded much earlier in the season – May 14 – and to a team that wasn't looking to win that season (trading Mike Piazza in the deal is a reliable indicator of that). Sheffield went on to make the All-Star team for Los Angeles, providing 3.0 wins above replacement, even with an awful glove that made him a more one-dimensional player than Beltran. To be sure, Sheffield wasn't a candidate to play center field. But with alternatives like a young Roger Cedeno and Todd Hollandsworth, Sheffield was certainly a difference-maker for the Dodgers, even if they finished the season with a mediocre 83-79 record.

Next on the list, appearing at 133rd among offensive outfield seasons since 1980, is the trade of Rickey Henderson on July 31, 1993. The Oakland Athletics, looking to rebuild, sent the 34-year-old Henderson to Toronto for elite pitching prospect Steve Karsay and toolsy outfielder Jose Herrera. According to Baseball America, Herrera was the 97th best prospect in baseball prior to the 1994 season; Karsay ranked 12th overall.

It is no surprise that Sandy Alderson, the current Mets General Manager, wanted a similar return to the one obtained by then-Oakland GM… Sandy Alderson. Henderson, for his part, slumped badly after the trade. He'd put up a 182 OPS+ with Oakland, but that dropped to just 83 with Toronto. Still, Henderson and the Jays went on to win a World Series. It is hard not to consider Henderson a difference-maker, especially since the other Toronto left fielders were Darnell Coles, Rob Butler, Willie Canate and Turner Ward.

The only other offensive outfield season in the top 200 since 1980 from a player traded in-season came from Brian Giles, whose 145 OPS+ ranked 161 in 2003. The Giles difference-maker portion of the deal is hard to evaluate – he went from a Pirates team out of the race to a Padres team out of the race. But the return is noteworthy – a young, hard-throwing lefty named Oliver Perez, a young, power-hitting outfielder named Jason Bay, and minor leaguer Cory Stewart.

In short, it is easy to see that any contender who suggested Beltran wasn't worth much was just posturing. Outfielders who hit like Carlos Beltran simply aren't available in many midseason trades.

With the hirings of Jack McKeon, 80, and Davey Johnson, 68, it appears a new trend may be afoot: old managers are the new market inefficiency. Much is likely to come from this, with teams using Willard Scott's birthday greetings as their own shortlists, and a spirited bidding war to hire The Oldest Living Confederate Widow.

But as many of the recent hires can tell you – having lived through it – hiring more experienced managers is nothing new. In fact, 15 of the 30 teams have employed managers 65 or older at some point in franchise history. How successful have these managers been, considering that their pep talks were littered with stories from the Great Depression? Unsurprisingly, their success varies, much as it does for their younger counterparts, based largely on the on-field talent.

The only manager in baseball history older than McKeon was Connie Mack. Interestingly, Mack was also one of the youngest-ever managers, getting his first gig as a player/manager with the Pittsburgh Pirates back in 1894, at the tender age of 31. His tenure with the Athletics lasted from 1901-1950, and had two high points. The first came from 1910-1914, when Mack's A's won four pennants and three World Series titles. Mack did this from age 47-51. But he was back around two decades later, as skipper for three pennants and two World Series titles from 1929-1931. Mack was age 66-68 for that success, and clearly had no trouble communicating with his younger players.  Even in 1932, at age 69, he managed to motivate 24-year-old Jimmie Foxx to hit 58 home runs.

A pair of 70-somethings also managed in the big leagues, one just recently, the other decades ago. Felipe Alou, who had managed the Montreal Expos well into his sixties, took over the San Francisco Giants at age 68 in 2003 and led them to 100 victories, then 91 the following season. His age 70 and 71 seasons were far less successful, but his talent eroded quite a bit as well. In 2003, his entire lineup featured hitters at OPS+ levels of 90 or above, with five of them above 104. In 2006, just two of his regular hitters topped an OPS+ of 93, and four found themselves at 84 or lower.

The other 70-something manager was Casey Stengel, of course, and it is hard to argue against his later-life success. Taking over the New York Yankees at age 58, he won a pennant each season, save two, until he was 69 years old. The Yankees lost the 1960 World Series to Pittsburgh, and decided to part ways with their manager. Stengel then delivered the immortal line about age and managing: "I'll never make the mistake of being 70 again."

Stengel did manage the New York Mets from ages 71-74 before a broken hip forced him out in 1965. Those Mets teams lost far more often than they won, but even a cursory look at the talent Stengel possessed would suggest that if anything, they overachieved.

One final note on aging managers: fully ten percent of all Major League teams have employed Jack McKeon as their oldest manager ever. McKeon's age-59 stint with the San Diego Padres back in 1990, and his age-69 tenure with the Cincinnati Reds ten years later make him the oldest manager in each franchise's history. With the Padres, he won 89 games in his penultimate season, 1989; with the Reds, he won 97 games and earned a one-game playoff for the wild card against the New York Mets in his age-68 season.

And of course, he'd already held the record for oldest manager in Florida history prior to this year's hiring, winning a World Series at age 72. In other words, it's probably time that somebody gave Earl Weaver – now just 80 himself – a call as well.