Cowher has an OUTSTANDING coaching record guys. And he built that record mostly with a bunch of no name QBs. Cowher doesn't get the respect he deserves IMHO because he is kind of a dull, blue collar guy. He doesn't 'excite' people. But all he did was win, win, win in Pittsburgh. Don't make me pull the stats. To say he was an 'average' coach - there's just no factual basis for that.
During his tenure, half his seasons were good, half sucked. And he accomplished that in a division that was the weakest in the league almost every year he coached, as evidenced by the fact they would get into the playoffs because they won their weak division, and almost immediately got bounced out of the playoffs every year, with a couple of exceptions.
I will admit I personally just don't like the guy because he's an egotistical control freak, and exactly what I hate in a coach, but I also don't believe he's the elite caliber coach some people like to make him out to be, because the numbers don't back that either. 8 of the 10 times he took his team to the playoffs, they were bounced out in the first or second game. His career postseason record of 12-9 isn't anything to get excited over, because any coach who makes the postseason 10 times should have more than 12 wins. I don't know of many people who consider Dan Reeves an elite coach, but with fewer trips to the postseason than Cowher, he had a similar record. What you do during the regular season means nothing if you can't win the ones that matter, which Cowher wasn't good at. I'd rather have a 9-7 coach that makes championship runs than a 12-4 coach who blows the first or second game every year. But that's just my opinion. A lot of people seem to salivate over Cowher, I just don't get it.
Not to mention, the odds of a coach winning a Super Bowl with multiple teams is extremely slim. Retreads almost never work for anybody. Not only that, but Cowher hasn't coached in a while. Too much has changed in the NFL for him to be a factor anymore if evidence from past coaches taking extended breaks shows anything.