You raise a very interesting question IM; interesting to note that when talking about Special Teams improvement, Mike McCarthy and Ted Thompson have referenced punting or coverage / returns.
You raise a valid concern, IM. Although I don't have an issue with Crosby's kickoffs - I think the coverage made them appear worse than they were - his kicking production has been less than desirable.
You have to think Mike McCarthy believes he deserves some blame for Crosby's performance by putting in him bad FG kicking situations. That is the explanation that makes sense, considering they've talked about Crosby needing to be better at the end of the season, yet we've yet to see them do anything to really push Crosby in the form of competition.
It is a concern, one that I think many (including myself) had simply started to overlook lately...
The NFL: Where Greg Jennings Happens.