I think Sheets is quite comparable to Peavy. The key difference between the two is Sheets has a larger injury history. But performance wise, Peavy is better, but not better to pass on the bargain that Sheets might be, especially if the Padres have extremely enormous demands. 2008 Sheets- 198.3 IP, 3.09 ERA, 1.150 WHIP, 139 ERA +, 158/47 (K/BB). Peavy- 173.7 IP, 2.85 ERA, 1.180 WHIP, 134 ERA+, 166/59. In the most recent season, Sheets pitched more innings and allowed fewer baserunners per inning. Performance wise, Sheets is just as good a pitcher as Peavy. The risk with Sheets is this (156, 106, 141, 198). Those are the innings pitched over the last four seasons. With Peavy, he's been over 200IP in every season except 2008. But when both pitchers are on the mound, the talent they bring is pretty close. If we were talking about signing Sheets to a Peavy-ish deal, I'd probably go ahead and make the deal for Peavy. But if Sheets could be had for 3/39 or less (and indications are that he could), and the Cubs get to keep Vitters and Castillo, then I'd definitely choose Sheets over Peavy.