I agree that there's no doubt that injuries are our biggest obstacle, although I'm not quite as sure about needing to play the "game of the season" to beat us in the postseason. We've seen scenarios like 2010 where NE was clearly the superior team yet lost to a "hot" team in the playoffs who got a couple of good calls from refs, bounces of the ball, etc. We're definitely in agreement, but I personally wouldn't see the gap as quite as large as many suggest--at least until Edelman returns. Then I feel much more comfortable.
I think this 2015 team has been very good so far, although my concern would be seeing how they handle some of the changes due to the injuries. I believe that #11 was the straw that stirred the drink, at least in terms of moving the chains and helping with the finer nuances of the offensive scheme. #87 is the bigger play guy and the player who can change a game quicker, but Edelman's loss is a big one. To take it one step further, we're now down to Butler, Ryan, and Melvin as our only 3 healthy CBs, so we'll expect someone to get called up from the PS tomorrow and/or McCourty taking reps at corner.