I'm not a big Crosby stan. I think he could be replaced, I think the Packers should be looking at improving the position, especially for the money getting sent his way.
With that said, if we were to release him, the "2nd worst" kicker in the league since 2007 would have a new job within the week.
Why?
Because he's better than his statistics appear.
You keep a guy like Crosby because the amount of kickers in the league who could make a 56, and then a 51 yard FG (twice) with all of those coming with 2 minutes left in the game, to win a playoff game, you could probably count on our hand. You keep a guy like Crosby because he's missed a grand total of 3 kicks in the playoffs, and that includes XP's. 29 FG's in the playoffs and he's made 26. You keep a guy like that.
Crosby is not, by any means, easy to replace. Kicking in Lambeau is difficult. Mike McCarthy did not utilize him well. Call them excuses, I call it context. This is a league where two bad snaps, and thus kicks, can make the difference between a good percentage and a bad percentage, and there were more than two bad snaps last year. Again, this is adding context, not making excuses.
Crosby is not a bad kicker. He's streaky, he's expensive, but in the big moments in the playoffs, when games truly matter, there are few kickers I'd rather see in Green and Gold.