Carlos Beltran is a player who started good and ended bad. Now who’s the player started bad but ended up being ok

Yeah, I see the takes on the prior post, but I know what you guys are talking about regarding Beltran. As he was good in 2017 and led us to a championship… But he ended up getting bad for us by saying the title is tainted and whatnot, as he was the guy who hurt us by implanting a cheating scheme. But anyway, who started good and ended okay?