Because they want to strategically line up starters to face certain teams? Because they want to do it in June/July. I highly doubt most MLB teams worry about that sort of thing until late August at the absolute earliest. Worry about? I agree with you that teams aren’t worrying about scheduling and pitching choices. Yet, strategic talks on the rotation are happening at all times at all levels of the organization, I have to believe. I would think rotation set up is a constant issue discussed based on opponent, schedule, off days, recent call ups, overuse of bullpen, and player’s health. It’s why CC and other managers don’t announce the starters a week ahead of time, just a few days. All these factors play in time. I find it highly interesting that the Brewers are now doing the 6th man rotation over the last month or so during their easiest strength of schedule games, when they have few off days, and when Leuer/Houser/Anderson are pitching relatively well. It won’t work if we have regular blow ups like Ashby had. So, of course they are thinking about these matchups with certain teams in June/July. But To totally reconfigure a rotation so that our top 3 pitch against a certain team during a three game July series of a 162 game schedule? No. There are other games to be played.