Probably not much, Fitz isn't a huge upgrade by any means. If anything might change the dynamic there, it's the addition of Marshall and the emergence of Ivory making Decker less of a point of emphasis for the Jets' offense. But Ivory wasn't healthy on Sunday, so even that isn't really a factor.
All in all, I think there's just no way around the conclusion that Butler looked really bad on Sunday. I think it just exemplifies the fact that we need to be capable of having a measured, reasonable perception of who he is as a player. He isn't as good as people were claiming a week ago, and he isn't as bad as people are overreacting an suggesting now. At this moment, he's an adequate CB1 or a very good CB2, and he has the potential to develop into more. The guy's a first-year starter, which means he was going to have some rough games. Uneven production is to be expected, and the upside of not getting too high on a player based on a small sample size is you don't have to overcorrect and forecast terrible things when he inevitably has a bad game or two. He's nowhere near as good as Revis was last year, but to ever think that he might be was insane in the first place so that shouldn't surprise any reasonable person.
The only long-term takeaway from Sunday that I'd find even mildly concerning is that this is one of the first itmes we've asked Butler to match up against a big WR, and the results were not encouraging. Maybe it's just a blip, maybe not. But I'll be watching very eagerly to see how he holds up against Demaryius and Hopkins (who plays bigger than his size) later this season. I like his ability to stay with guys who win on shiftiness--the Browns, Beckhams, Landrys, Sanders, Edelmans, etc. of the world--and luckily most of the top WRs we see for the rest of the season are guys like that.
