A few thoughts:
1. The Steelers do not promote assistant or podition coaches from within or hire retreads to HC. Unless there is a dramatic change in FO demeanor Mike Munch will never have that job nor do I think he wants it.
2. Colbert and Tomlin own every draft pick and their lack of development. Al Vallenueva was picked up and handed to Munch. Looks like the linebacker position development strategy might need to go in a new direction.
3. Emperor Chaz was a "Defensive Guy", his first season was an abysmal 1-13 following perennial Steeler losing seasons. Noll built a championship team, he didn't inherit one. The game has changed since then, other teams manage to do fine with prospects and talent assessment & development. Belichick takes rejects and turns them into playmakers, how does he do that?
4. Mike Tomlin " did a good job as DC for the Vikes", so how is it the Steelers secondary has been weak for three years?
5. Jim Harbage is a dick and the SF organization has changed since the days of Bill Walsh. They only wish they could compare themselves to the Steeler FO. Harbage AND Urban Meyer will remain college coaches they're good at it, get paid well and don't have to deal with the NFL related BS.
6. Mike Tomlin will be HC for the Steelers in 2016. It's not his fault potentially a 10-6 season couldn't win a Division title even though ( so far), three of the losses were against division rivals! You know, the games you HAVE TO WIN against teams you have the most film to prepare with! I think Tomlin gets one more year before the Steelers start calling him in for an evaluation meeting. This year he gets to tell everyone how good of a year Marvin Lewis had.