Which only serves to highlight how clueless most people actually are.
It's often people who have not achieved much academically who believe they have some 'football intelligence.'
Meet them all the time. They earn 8 quid an hour in Tesco but are absolute experts in football. They convince themselves that there's some deep critical and scientific element of football that they see and think they're highly intelligent.
Nope. Football is quite a simple game. Good PLAYers will PLAY good most of the time. See how that works? It's hardly rocket surgery (sic) is it?
Stop trying to convince yourself (not you) that it makes you intelligent and concentrate on supporting the team and getting the out of date bread into the bargain bin.
I think the thrust of your argument is valid, mate, in that people you wouldn't trust to tie their shoe laces sometimes seek validity and status by their 'knowledge' that the moon landings never took place, Bill Gates is trying to track your whereabouts via chips in vaccines, and they know football better than anyone else, whether rocket scientist, or successful coach. On the other hand, the way you couched your argument could be very hurtful to lots of good people, and that hurt could have been avoided by making your point differently.
Having agreed with you, I have to point out that I believe I have a lot more going on between my ears than many a player, coach, and manager, and yet they're infinitely more able to make good football decisions than am I. Similarly, when I was a kid, I was pretty bright, and had a mate with less brains than a block of wood, yet he would always, always, beat me at chess, so there's probably such a thing as niche intelligence, not reflected in general academic ability.
Hope I've said all that without causing any offence, other than perhaps extreme boredom. Sorry for wittering on.