I'd rather see a 4-man rotation than a 6-man rotation. Why is that? Too hard to get your good SP's the appearances they need to lift the ballclub on their shoulders. Also---many people believe SP's start to get rusty after too much time off. There's a school of thought that says the old way (4 man rotations) was actually better because it taught SP's to lay off their arms and learn to pitch, and it also made them do it more often so they got better at the "art" of pitching. Now guys take the extra day of rest and just try to destroy everyone without investing the energy into learning to hit spots, choose the correct pitch, etc. I'm not saying I totally buy it, but I accept it as a decent argument. Really hard to put together 6 good pitchers, too... Pitcher's have their routines. The mechanical work, the conditioning and throwing phase and the mental game are part of that routine. Now, if you take that pitcher out of a routine he has been using for years, he is not going to have the same results in my opinion. The single most important thing when you look at a pitcher is his daily routines.