Yea, for the reasons I mentioned near the top (Devaluing pitchers, union issues, etc.), and some great points from others, this wouldn't work. What happens if one or both of the first 2 are lights out, or get rocked. With only 1 or 2 options left in the BP, those guys would have to pitch virtually every day, which is not workable. Give the guy more innings that got pulled the previous start? Less to the other guy who may actually be pitching better? And having 3 guys slotted every night, odds are one of them will be off. Yea, they use piggy-back starters in the low minors. They have no choice, as they want/need to limit the innings and have a look at more guys in the starts role. But that's only 2 pitchers slotted for each game, not 3 which is a pretty big difference. Oh, and winning isn't the only goal in a MiLB game. Here's what I think could work. Develop relief pitchers to be able to pitch more than one inning. Better, yet several innings. That would go a long way in getting close to the OP's plan. It would offer a lot more flexibility than having a strict structure of 3 pitchers every game. That would give you the best of both worlds. If the SP can give you a QS, great. If not, you have several options to put in the game that can give you 2-4 innings. You're only using one other pitcher, rather than the blowing through 4 guys. Again, I hate to throw water on this idea because I am always looking for different ways of doing things.