Well we can agree to disagree... (and by the way pretty presumptuous to assume you have age on your side)
I would say if you were a realist - and even if you are correct on the Cogen boardroom - Bob McNair does see success in his football franchise.
The entire NFL is now a marketing company - not just the Texans. This isn't the NFL of the 60's 70's. These are billionaires with expensive toy's, and McNair has...
A profitable franchise, with a well respected game day experience - doesn't matter to me, I don't go to games - and doesn't matter to others because they only care about win's and losses - but it does matter to a number to Texans "fans" who pay to go to NRG each Sunday and can't name more than two starters. Yes McNair and the NFL care about those folks too.
A franchise he sees as going in the right direction - from perennial bottom dweller of the division, to multiple division championships and playoff appearances. Seems McNair thinks they are close... that what they are doing is moving them in the correct direction and they will get there. My crystal ball is broken so I can't for sure say they won't but I'll allow for the possibility that they never do and McNair's way won't ever work.
It doesn't change the facts that 1) if his way is indeed wrong, he has to learn that lesson and 2) even if/when he ever learns that lesson, it doesn't guarantee a Belichick is going to be his first hire and off we go.
I know in your head you have a list of "can't miss" football folks that all he needs to do is hire them and get out of the way - BOOM instant contender and dynasty. But it seems every NFL franchise disagrees with you, as none of them have that role yet.