Renteria's 2011 ZiPS projection: .265/.318/.362/.670 I might expect something like .275/.300/.400 from Betancourt in the NL, which is about a wash. If I had to to pick the better hitter, it would probably be Betancourt by a hair. The huge difference is in defense, where Renteria appears to still be average, whereas it is almost universally agreed that Betencourt is a very bad at playing defense at SS. I would be surprised if Renteria has 150 starts in him for 2011 but had he been signed with the Brewers, he probably would have only ahd to start 100ish games. I won't pretend that Melvin could have gotten Renteria had he wanted to; how would I know? I think he represented a clear upgrade over Betancourt, however. Probably close to 1 win over 100 starts, which is a lot.