Mixing up your rotation with a lefty helps the other guys in it. That's why as long as he's performing, Narveson will be in the rotation. I think those of you calling for him to be just dropped or shunted to the bullpen are forgetting that from May of 2010 through most of 2011, he was a pretty solid starting pitcher. I think Fiers can still get a spot. Peralta is going to get a couple starts out of the gate, but I don't think he's set in stone either. Over the first couple weeks, it's likely there are going to be 2 or 3 short starts and Fiers is going to get some innings. After a couple times through, Lohse will be fully extended and the need for a guy specified as a "long man" will pass. If Peralta were to struggle and Fiers be solid, they'll just send Peralta down and keep Fiers. Now if both Fiers and Peralta perform and Narveson has a couple bad starts, then I can see Narveson going to the pen. They won't just release him and he doesn't have options. Let's not forget too that Estrada isn't in the "established" category quite yet either. He makes enough where his roster spot is secure, but if he has a string of bad starts, it's not out of the question that he'd end up in the pen too. The only two guys who are starters come h*** or high water are the guys making the big bucks, Gallardo and Lohse. They have less flexibility than they had before Lohse, but they still have some. Peralta has options and the Brewers have guys in line to take his spot if he doesn't perform. Not just Fiers of course, but Burgos and Thornburg as well if they are dealing in Nashville. That depth could also come in handy if there is an injury that takes someone out as it did with Narveson last year.