And in 2004, the Pats had a ton of injuries to key players and won anyway. The fact is, if you're an NFL team you're going to have season-ending injuries to significant players. Every year, one team wins the Super Bowl, and it's pretty much guaranteed that, while that team is likely to be healthier than others, it will have lost key players over the course of the year.
The question becomes: is losing Mayo, in of itself, too much to overcome? And my answer to that is no. It's bad, for sure, but we'll have to lose more than Mayo and Ridley to get to that point. As long as Brady, Revis and Gronk are healthy-ish, we'll have a shot. As long as most/all of McCourty, Edelman, Jones, Hightower, Wilfork, Mayo, Collins, Ridley, and Ninkovich are healthy, I think we'll have a pretty good one*.
*As always, pending the o-line's ability to get/keep its **** together
We're obviously not off to a good start with that latter group, and if a couple more of those guys--or any of the guys in the former group--get hurt, then we'll just be one of a half-dozen or so teams that had their legitimate SB aspirations taken away by injuries. But as long as the injuries don't pile up from here, there's still a real shot that we could be as healthy as anyone going into the playoffs. Do I think that'll happen? I have no idea, but I'm sure as hell hoping for it.