Having said that, if PCB is looking for a change in management style, then Misbah might not be a bad choice among locals - muuuuuuuuuch better than the likes of Javed, Mohsin, Aaquib, Basit or WY.
What I think is, they might go for a little revised role for Head Coach (rather, we should call it Team Director), where the HC is more of a facilitator for Specialist coaches, Captain and Scouts (selectors). In that case, Misbah can be a very good choice, because he has the education, experience and personality for that role. He can be successful if they appoint 4 top quality specialist coaches who knows their job. And, obviously a C Selector/Scout that watches domestic games religiously.
In that regard, if PCB wants to appoint Misbah as team director, may be they should look to appoint capable Captains as well, and specialist coaches far better that Azhar or Grant. Also, I think its time that PCB appoints a top quality classical spin coach to teach PAK spinners the art (& value) of turn, flight & loop - my choice is Rangana Herath. For Batting, its a MUST that the next coach should be an ECB/CA Level 3 qualified batting coach. For Fast bowling, may be a local coach can work (I rate Kabir Khan quite high), while doesnt matter much who is the fielding coach - problem is somewhere else.
I am sure, if Misbah is considered, then Wasim Khan has been indeed done his homework on support coaches. Misbah is not going to improve the skill level or PAK players, neither he can fix their technical flaws, but he is a very good administrator, and an honest trier.