I agree that pitching changes can be sped up.
by vitadulcedospes (2019-01-11 18:21:15)

In reply to: Agreed  posted by Brew City Domer

Mid-inning pitching changes get only three warmups instead of eight.

Bring back bullpen golf carts to deliver pitchers to the mound from the pen.

Or, my favorite, require the relief pitcher to be in inserted in the game. Combine that with a three or five pitch warm-up, and time will be saved.