[cthalupa]

This would more than halve the amount of relief pitchers needed, so the MLBPA will never ever think about agreeing to it.

Starting pitchers averaged ~5.5 innings per game in 2024, and going 7 is hardly a rare occurrence. You would basically just have starters, 2-3 relief pitchers, one "long-man." vs. the average of 8 on the roster today.