Here's an idea: Since the Sox essentially gave up very little to get Peavy, what if the Phillies budge on Lee at the last minute? Would y'all do JBJ + Doubront + WMB for Lee (70% salary) and Young (have to take him off their hands)?
Again, IF healthy, Peavy is the best pitcher on this staff right now. You're seriously underestimating what he can do when healthy. The problem is keeping him healthy.
FP is absolutely the worse defensive measure you can use. And Peralta is not the problem (UZR's of 11, 13 and 1 last three seasons including this one). He's referring to the rest of the infield, and part of the outfield.