Tai Peete Changed For the Better, Without Really Changing, After Becoming a Cardinal

Liam Keating/News-Leader / USA TODAY NETWORK via Imagn Images Tai Peete has changed for the better since being acquired by the Cardinals from the Mariners as part of a three-team trade back in February. At least from a statistical standpoint. In 2025, the now 21-year-old outfielder left the yard 19 times for Seattle’s High-A affiliate, but he also fanned at a 30.6% clip while batting a lackluster .217 with a 79 wRC+. Those results were reflected in our prospect rankings. Peete fell out of our Top 100 entering the 2026 season, with his FV dropping two grades from a 50 to a far-less-bullish 40+. This season was a different story. Acclimating well to his new environs, Peete put up a 126 wRC+ and a .296/.359/.549 slash line across 300 plate appearances between High-A Peoria and Double-A Springfield. (He also had 10 hitless at-bats rehabbing in the Florida Complex League.) Moreover, he lowered his strikeout rate to 26.9%. While not exactly Luis Arraez territory, the improved contact rate was a meaningful step in the right direction. As Eric Longenhagen wrote in last week’s Arizona Fall League Midseason Check-In, Peete’s “strikeouts have stabilized after they looked like they might be his undoing early in his career.” The lefty swinger has continued doing damage since arriving in the desert. Over 72 plate appearances with the Peoria Javelinas, Peete has posted a .355/.431/.661 slash line, with 11 of his 22 hits going for extra bases. Taking ample advantage of his 60-grade speed, Peete has legged out four three-baggers and swiped 14 bags. An unpublished observation from Eric merits mention. When I asked our lead prospect evaluator for an update a few days ago, he told me that Peete is “kind of in the Garrett Mitchell mold physically and swing-wise. He has posted some plus-plus run times this fall. Really seems fun to be around, too. Probably in that 45+ FV area for us now.” Eric also mentioned a health issue that I hadn’t been aware of, and thus didn’t ask about, when I talked to Peete on AFL media day. According to a story by MLB.com’s Aiden Stepansky, the promising young outfielder got sick in late May and had to spend multiple weeks in the hospital, losing about 25 pounds. What I did ask about in our early October conversation was his rebound season. Specifically, what role did changing organizations play? Did the Cardinals help him make mechanical tweaks that contributed to his markedly better performance? “Honestly, I think being traded was a blessing,” replied Peete, whom the Mariners drafted 30th overall in 2023 out of a Georgia high school. “I don’t look at it as a team giving me up; I look at it as a team wanting me. The Cardinals wanted me, and I’m going to do my best for them. I’m going to keep working, trust time, trust the organization. My experience so far, man… I’m happy.”You Aren't a FanGraphs MemberIt looks like you aren't yet a FanGraphs Member (or aren't logged in). We aren't mad, just disappointed. We get it. You want to read this article. But before we let you get back to it, we'd like to point out a few of the good reasons why you should become a Member. 1. Ad Free viewing! We won't bug you with this ad, or any other. 2. Unlimited articles! Non-Members only get to read 10 free articles a month. Members never get cut off. 3. Dark mode and Classic mode! 4. Custom player page dashboards! Choose the player cards you want, in the order you want them. 5. One-click data exports! Export our projections and leaderboards for your personal projects. 6. Remove the photos on the home page! (Honestly, this doesn't sound so great to us, but some people wanted it, and we like to give our Members what they want.) 7. Even more Steamer projections! 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Membership includes:✓Ad-free browsing✓Unlimited FanGraphs & RotoGraphs articles✓Historical & platoon projections✓Leaderboard & player-page stat heatmaps✓One-click data exports✓Customizable player-page dashboards✓Dark & Classic site modes✓Weekly Members-only mailbag✓FanGraphs Walk-Off, your year in review✓Optional homepage photo removal✓Gift articles to non-Members✓Full postseason coverage The Cardinals certainly have reason to be pleased. While they gave up Brendan Donovan in last winter’s deal, the return wasn’t just Peete, but also two other promising prospects: 23-year-old switch-pitcher Jurrangelo Cijntje, who is currently ranked fourth in the system, and 24-year-old outfielder Colton Ledbetter, a former second-rounder who put up a league-average wRC+ in his first Triple-A season. It isn’t uncommon for teams to trade for prospects they liked in the draft, only to have them land with another team. With that in mind, I asked Peete if he had many conversations with Cardinals scouts leading up to draft day. “No more than with any other teams,” he told me. “I mean, it’s a business. You never know what things are going to happen, what is in the plan. You have to take what you get, follow through with it, and trust both the organization and yourself.” As for any mechanical changes he made this past season, Peete said there really weren’t any. With a caveat that small adjustments to help you feel more comfortable in the box are commonplace for all hitters, he was basically “the same kid as last year.” If anything, he was “mentally able to stick with [his] approach better” than he’d been the year prior. And again, 2026 has been another story. His response came with a smile when I expressed surprise that there hadn’t been any meaningful tweaks to his setup or swing. After all — this after a disappointing 2025 — what he did in 2026 was rake. “I appreciate you saying that,” Peete said to my complimenting his performance. “But seriously, last season I was kind of the same guy. This year, I was just more consistent with the way I came to the ballpark and attacked my plan. That is truly the only thing that changed. I just stayed true to the plan, and tried to get better every day.”