Willi Castro is currently on a roll. He has essentially doubled his batted average, halved his strikeout rate and continued to play good defense all over the field. With the injury to Byron Buxton, there has been discussion whether Willi should become the primary center fielder in Buck's absence.
What I would like to discuss here is what the best role for him is going forward and what has changed since he was signed to a minor league contract just before Christmas in 2022.
First and foremost, he has earned the trust of the manager. Rocco Baldelli trusts Castro to handle several positions defensively, make good and aggressive base running decisions and handle himself against left and right handed pitchers. This has won Castro lots of playing time. He currently has played in every game, starting 26 of 30 and is among the top three Twins in plate appearances.
Secondly, he has picked up his hitting against left handed pitching. Willi is mashing to the tune of 1.250 OPS versus southpaws. Last season, he lagged against lefties with a .636 OPS. On the other hand, Willi's OPS against right handers has suffered (only .646 to date). I would expect regression to the mean in both, especially given his career platoon splits are basically neutral.
Finally, and maybe because my expectations have changed, there seems to be a downturn in both defense and base running. Castro has been guilty of a couple of notable base running mistakes, he's been nabbed stealing three times already and has more bobbles and bad routes in the outfield than I recall from 2023. He's still a good defender in left field (the best the Twins have) and is a good fielder at third base. He has already played much more shortstop in 2024 than he did in 2023 and he's no Carlos Correa at short (not many are).
In summary (and IMHO), Willi Castro has followed up a breakthrough season with another solid start and has attained the status of a regular at the age of 27. While it is early in the season, he has thus far shown that 2023 wasn't a fluke and that he can do a lot of things to help the Twins win ball games. He appears to thrive playing wherever he is needed and looks to be an asset that the Twins would be smart to keep, maybe for more than his years of team control.