Big Jackson Prospects is back with another edition starring members of the new Jackson Four.
Five Big Hype Prospects
Jackson Holliday, 19, SS, BAL (AAA)
(A/A+/AA) 490 PA, 10 HR, 23 SB, .333/.451/.517
Holliday is the top-performing minor leaguer among players with more than 400 plate appearances. His 168 wRC+ is all the more impressive when considering his age relative to his competition. The question now on everyone’s lips – will he make his Major League debut this year? To me, that will depend on how he does in the next few weeks. One factor is outside of his control: will the Orioles have an injury to open a playoff roster spot for him? He’s likelier to get a taste of the Majors if he’s expected to contribute to the playoff push.
To date, Holliday has relied on hard, low-angle contact and high BABIPs to fuel his offensive success. Such an approach tends to be less effective in the Majors. At Triple-A, we’ll get our first public look at his exit velocities. I’ve heard some rumors but haven’t gotten my hands on the actual data yet.
Jackson Merrill, 20, SS, SDP (AA)
(A+/AA) 488 PA, 15 HR, 15 SB, .283/.331/.454
Merrill is having a nice time of it in Double-A. He was reportedly considered for a promotion to the Majors about 10 days back. The Padres seemingly decided against the aggressive move. As it stands, he’s positioned himself to skip a return engagement in Double-A next season. As to where he fits in the Padres long-term plans, he might need to wait for Ha-Seong Kim and Jake Cronenworth to open the door at second base. The FanGraphs prospect crew described Merrill as “Michael Brantley, except at shortstop,” and that’s exactly how he’s trending.
Jackson Jobe, 20, SP, DET (A+)
(A+) 30 IP, 12.30 K/9, 0.90 BB/9, 3.90 ERA
Jobe is a spin-rate boss with four average or better offerings. His weapons have allowed him to live in the strike zone in the low minors. A test in Double-A to open 2024 should help with the development of his command. Encouragingly, the Tigers are using Jobe like a traditional starter down the stretch. Since reaching High-A, he’s faced 20 or more batters in four of six outings. Compare that to other top pitching prospects around the league. Jobe hasn’t pitched much since he was drafted in 2021. It’s possible we see him finish out his season in the Arizona Fall League.
Jackson Chourio, 19, OF, MIL (AA)
(AA) 509 PA, 21 HR, 37 SB, .282/.336/.471
One of the few upper-echelon prospects younger than Holliday, Chourio has spent the entire season in Double-A where he’s held his own against much older competition. He’s been particularly effective of late, delivering four home runs and a .998 OPS in his last 45 plate appearances. Anyone hoping to see him promoted into the NL Central playoff race shouldn’t hold their breath. His defensive skills remain a work in progress. While he has the raw tools to stick in center field, his reads are still inconsistent. Were his glove ahead of his bat, he’d have a better case for a cheeky late-season promotion.
Pete Crow-Armstrong, 21, OF, CHC (AAA)
(AA/AAA) 474 PA, 18 HR, 35 SB, .278/.364/.499
Unlike Chourio, Crow-Armstrong’s impressive defensive ability must be weighing heavy on the playoff-aspiring Cubs. Though they’ve gotten good results from Mike Tauchman, that feels more like found money than a sustainable source of production. A promotion for Crow-Armstrong would be a lock if not for one bugaboo – a 30.3% strikeout rate in Triple-A. There’s considerable swing-and-miss to PCA’s game. He has pop, emerging discipline, and plenty of speed to make up for his lack of contact. There are some roster considerations working against Crow-Armstrong since he’s not Rule 5 eligible until after 2024. If the Central battle remains close come mid-month, I expect to see him.
Three More
Ronny Mauricio, NYM (22): In just 11 plate appearances, Mauricio has already delivered the Mets hardest-hit ball of 2023. There’s no question the switch-hitter shoots lasers. The issue is whether or not he makes enough contact to sustain a regular role. Though athletic, he’s not known for his defensive ability.
Emmet Sheehan, LAD (23): In the wake of today’s news, Sheehan has elevated importance for a Dodgers club with only two veteran starters. In limited action, he hasn’t had confidence in his changeup. He needs that to be his moneymaker. Below-average command hints at a relief future.
Masyn Winn, STL (21): When we covered Winn at the time of his promotion, we noted the bat didn’t seem ready despite a broad base of skills. He’s struggled to a 6 wRC+ in 49 plate appearances. Winn appears to be making a classic first-timer mistake – selling out for any contact at the expense of quality contact. He still has a dozen ways to grow into an average or better player.
Did I miss a detail or nuance? DM me on Twitter @BaseballATeam to suggest corrections.