Hader has pitched back to back numerous times this year. It simply isn't true that he can't do it. It may not be the preference, but he has, and I imagine he will this postseason if it is needed and Day 1 is light work. We need to stop saying "preference" too. (Not picking on you OSS, as its been a few times). He isn't as effective so doesn't do it much. But he does do it.