They were MLB rookies who made big headlines in 2023: Corbin Carroll, Yanier Díaz, Eduard Julien, Nolan Jones, and James Outman. The question was whether they could avoid that infamous “sophomore slump” in 2024. Whether the sophomore slump is a real thing remains a subject of debate., Peña. At first glance, he seems like a prime candidate for a sophomore slump, but at a deeper dive his stats were way improved after eliminating his leg kick. So I think he will keep that level of performance (115-135 wRC+)., The way baseball’s minor league system works accentuates the selection bias; underperforming rookies are typically demoted while the ones crushing reasonable expectations get to stay. Looking, Berroa and Willis each had 10 Win Shares in their sophomore seasons, after posting 16 and 14 Win Shares as rookies, respectively. Is what happened to Hinske, Berroa, and Willis commonplace? Does, Famous Slumps in Baseball History. The history of baseball is full of slumps, with some of the most notorious ones on record. From Joe DiMaggio’s 56-game hit streak to the Chicago Cubs’ 108-year championship drought, MLB has seen its fair share of slumps., .