Don't know the reason, I just know I have a hard time projecting dominance from a guy being removed from the only environment he's been dominant in. I expect him to be a very good starter, but I think there's going to be a lot of disappointed Cubs fans when his ERA looks more like the 3.6 of his career road totals than the sub-3.00's he's been posting. I don't see it, I see 04,05,07 Peavy when he was at his best on the road and at home. I'm not saying he's going to put up a sub-3.00 ERA with the Cubs, but I'd be more surprised with a 3.60 ERA than a 2.95 ERA.