Ryan Jeffers
At the start of the season Ryan Jeffers was on a tear that suggested he might be a huge part of the future. That was short-lived though, and his' role in the Twins' collapse has soured the positives he had earlier in the season.
Kyle Farmer has gotten a lot of flack this season for how bad he's been offensively, but the gap between him and Jeffers isn't that big. Since mid-May, Jeffers has hit .196/.269/.339 which is significantly worse than where Farmer will finish the season (he's closer to .223 thanks to a nice hot streak in early-September).
Jeffers had 10 home runs through the first two months of the season, but ended up hitting just 10 more over the last four. His defense started to become a liability as well, which was one of the more troubling parts about his slump considering how that was his chance to have a bit of saving grace.
There was once a conversation about Jeffers first splitting time with Christian Vazquez and then taking a bigger share of the starting catcher role. Both are under contract for 2025 but it's hard to see the Twins moving forward with a ton of confidence in Jeffers after what we saw out of him over the course of the team's collapse.