Saying McCarthy should be fired is easy. Offering a real solution is the difficult part. Who do you replace McCarthy with is a legit question? Go to perennially underachieving HC lIke Lovie Smith? Bring in an up and comer with no HC experience like Darrell Bevell? Or steal from the Belichick tree with Matt Patricia or retread Josh McDaniel? Yeah it's been 6 years since McCarthy won a SB, Bill Cowher went a decade after losing a SB before he even went to another. He kept his team in the hunt every year despite losing in the playoffs every year except his last, but somehow McCarthy isn't good enough despite winning a SB in year 5? Winning a SB as a HC with the 2nd best winning % among active HCs with over 100 wins is not nothing, regardless of the time between SB wins. Not every coach can be Belichick, those are unfair expectations.
McCarthy needs to shake something up with his routine because the status quo has them at .500 far too late in the season. I can't say where to start because it's hard to pinpoint the issue...it's an issue of execution IMO, but is that an attitude issue among players or practice issues? If it's attitude players then you need to get the players who want execute in the game and sit the inconsistent players. If it's a practice issue then they need to put the position coaches whose positions aren't performing, like QB and WR, on notice or replace them immediately. He needs a culture shock. I still think his biggest mistake was not brining Joe Philbin back in some capacity after he was fired by Miami. Philbin had a different background from McCarthy and was from a different tree and I think he gave McCarthy a different perspective...all the guys now are from the Holmgren/McCarthy tree aside from the new RB and TE coach.