St. Louis Gets Quantity Over Quality for Flaherty
Jack Flaherty hasn’t quite looked himself since 2019, but the Cardinals were still able to get three prospects for a few months of his services from the Orioles at the trade deadline. The prospect return on the way to St. Louis — whose other deals are covered here, here and here — is made up mostly of near-ready players who should be able to play a role in what we’ve assessed as an attempt to rebuild quickly. The three prospects are Cuban infielder César Prieto, lefty Drew Rom (both of whom were at Triple-A Norfolk), and 19-year-old righty Zack Showalter, who was promoted from the Complex level to Low-A toward the end of June.
While playing pro ball in Cuba, Prieto broke Kendrys Morales‘ rookie hits record and the Serie Nacional’s hit streak record (40 games) in 2020, striking out just six times in 250 plate appearances. The rate of player defections from Cuba significantly diluted the quality of pitching in pro ball down there, so it was difficult to gauge his hit tool with precision. He defected from the Cuban National Team not long after arriving in Miami for an Olympic qualifier in May of 2021 (there’s a riveting Sports Illustrated story that details his “extraction”), and he signed a $650,000 deal with Baltimore at the beginning of the 2022 international signing period.
After torching High-A for a few weeks, Prieto was promoted and spent most of his first minor league season with Double-A Bowie, where he struggled, slashing .255/.296/.348 in 90 games. He halved his strikeout rate when he was sent back to Bowie at the start of 2023, slashed a BABIP-aided .364/.406/.476 and was promoted to Triple-A Norfolk. In about a month prior to the Flaherty trade, he was hitting .317/.365/.471, again with a high BABIP.
Prieto can actually hit. His short levers make him extremely difficult to beat in the strike zone, and he can let the baseball travel deep before striking it the other way, generating doubles power pole-to-pole. His big issue is his propensity to chase, which he did at a 36% clip in 2022 and at a 40% rate so far in 2023, hindering the quality of his contact as well as his ability to reach base. But lefty sticks who make this much contact (91% Z-contact% as of the trade!) tend to carve out some kind of role, especially if they can play multiple positions.
Prieto is a below-average infield athlete and presents a stiff, non-traditional look at both second and third base. He also plays shortstop, but that is not something he’s remotely capable of doing at the big league level. I was hopeful that another full year with pro athletic training facilities and another season of seeing pro-quality pitching after he had access to neither for such a long time would help enable adjustment in these areas, but they’ve continued to be issues. I think the Eric Sogard comp I’ve had on him since his amateur days still holds water. He’s a flawed part-time player, but guys who can hit like this tend to play for a long time.
The other player who should provide a quick turnaround is Rom, an over-slot 11th-round high schooler from the 2018 draft who has slowly climbed through the minors with a cutting low-90s fastball. Especially when he was very young, he looked like he had a chance to break out if he could throw harder as he matured. That hasn’t really happened, and he’s still sitting mostly 90–92 mph, but his fastball still punches above its weight, and he’s managed to strike out more than a batter per inning throughout his pro career. While that likely won’t continue at the big league level because his stuff isn’t nasty enough, he throws enough strikes with his four pitches (if you count his four-seamer and sinker as two different offerings) to project as a depth starter. Already on the 40-man, Rom joins the mix of starters I mentioned in the analysis of the Jordan Montgomery deal as a candidate for the 2024 rotation.
Finally, there’s Showalter, another over-slot 11th-round high schooler, to round out the Cardinals’ return. It took a $440,000 bonus to buy him out of a commitment to USF after last summer’s draft, and he has made a strong pro debut. He generated some scout buzz during Extended Spring Training, then made only a few Complex starts before being promoted to full-season ball a little over a month before the deadline. Showalter works usually three or four innings per outing and sits 93–95 with uphill angle and tail. His delivery is of the open-striding drop-and-drive variety; he keeps his arm action very short and tucked close to his body as he motors toward the plate. It helps keep his release consistent and allows him to hide the baseball well. But he isn’t a fantastic athlete and lacks balance over his landing leg, which is often an indication of relief risk. I’m not yet ready to toss him on the main section of the updated Cardinals prospect list, but he’s a solid low-level arm with a mean outcome of a fastball/slider reliever. Prieto (40 FV, a 1-WAR annual performer who I expect will get 350–400 PA in his best years) and Rom (35+ FV, a spot starter) do make the cut.
This return isn’t enough to alter what I outlined in the Montgomery piece. The Cardinals still have a below-average farm system but have filled up the upper levels during this mini-rebuild and should have the pitching depth to compete for the NL Central next year if their core of hitters stays healthy and performs as expected. As a return for the Jack Flaherty who looked like one of the better pitchers in the NL for a little while, it feels light. But for the recently vanilla, free-agent-to-be Jack Flaherty, it makes sense for St. Louis to have received a few lesser prospects.