CSOM

I was thinking a different platoon... It almost seems clockwork that he can go 4-5 innings strong, and then blows up. Villy and Manny seem similar to me (sorry I haven't looked up the numbers to back this up) but is there anyway to do a platoon of a "double-starter"? Example: Bush starts, pitches 4, Villy relieves pitches 4 and then we go to closer? They are pitching fewer innings too, so not sure if they could do more frequently that way...