Yes, I have seen their starter/reliever splits. I've also seen Peralta throw 6 or more innings of one run ball or less eight times. I also know that it's difficult getting yanked back and forth between starting and relieving and AAA and the majors; just look at Woodruff's first two seasons. I also know that Adam Wainwright was the closer on St. Louis's 2006 World Series team, and I'll bet that they're pretty glad they didn't keep him in that role. I believe that it's a fool's errand to definitively define a guy as a starter or reliever based on less than 200 career innings. Ok, great. Then if the Brewers really believe that Peralta is a starter (I'm still quite skeptical), revisit his role in the offseason. Doing it now in the middle of a pennant race is extremely risky at best. As you just yourself said, getting yanked back and forth is tough for these guys, so leave Peralta alone in the role he's been successful in this year.