I don't totally understand all this "the league has passed him by" talk re: Cowher. Sure, passing yardage totals are as high as ever, but aren't teams still winning by running the football?
In 2013 the Eagles and the consensus most innovative coach in the league ranked 4th in rushing attempts. In passing attempts, only 27th. The Seahawks were 2nd in rush attempts and 31st in pass attempts. They were both fine!
He also was more aggressive than I think people give him credit for. Here's where the Steelers ranked league-wide in 4th down conversion attempts during the years he was there:
2006 - 4
2005 - 22
2004 - 20
2003 - 5
2002 - 4
2001 - 23
2000 - 26
1999 - 3
1998 - 15
1997 - 12
1996 - 24
1995 - 7
1994 - 25
1993 - 7
1992 - 10
That's in the top half of the league 9 out of 15 years. Maybe most importantly, top-5 in three of his last five seasons (except for the two years, '04 and '05, they were trying not to let a young quarterback do too much.)
The guy made his bones in large part by putting together a good staff and putting players in a position to succeed, sometimes in outside-the-box ways (most famously, Kordell Stewart, Hines Ward and Antwaan Randle-El). If he's TP's dream guy - and he very well could be, given his esteem for Pittsburgh sports - I don't see why he can't still be successful.