MLB Teams Adjust Pitching Roles Ahead September Playoff Push

Several MLB teams are adjusting their pitching staffs as the 2025 season approaches its final stretch, focusing on both roster flexibility and player development ahead of the playoff deadline. The Toronto Blue Jays are moving Eric Lauer to the bullpen temporarily to provide extra rest for newly returned ace Shane Bieber, while also considering a six-man rotation to benefit other starters. The New York Mets are experimenting with pitching prospects like Brandon Sproat, who is gaining bullpen experience in Triple-A, and Nolan McLean, who has recently joined their rotation with strong performances. The Boston Red Sox are evaluating options to replace Walker Buehler in the rotation, with candidates including Richard Fitts and top prospect Kyle Harrison, who has improved considerably after adjustments in Triple-A and could fill a key rotation spot. Meanwhile, the Houston Astros are hoping veteran starter Spencer Arrighetti can rebound from injuries and poor performances to secure a place on the playoff roster as the August 31 deadline nears. These moves reflect teams balancing immediate competitiveness with long-term player development as they prepare for the postseason.