2. RP Andrew Chafin
At the 2023 trade deadline, the Brewers made three main trades to improve the roster. Two of those moves, the one to acquire first baseman Carlos Santana and especially the one to bring in outfielder Mark Canha, worked out quite well for the Crew.
The other one, which saw them acquire reliever Andrew Chafin, did not go nearly as well.
Chafin was acquired by Milwaukee at the trade deadline to give the team some extra lefty firepower out of the bullpen. While southpaw Hoby Milner had held his own all season, the Brewers hadn't had much success experimenting with other lefties alongside him.
And though his first few outings went well enough, Chafin has struggled in a majority of his other appearances for the Brewers. In 14.2 innings pitched, the 33-year-old has a 6.75 ERA and 1.432 WHIP, has given up three home runs and has 14 strikeouts compared to nine walks.
With generally more off days between games, bullpens tend to be fresher in the postseason and teams go with their main relievers more often. Chafin is definitely not a main reliever at this point and doesn't need to be on the roster.