You say the courses mean next to nothing but they are not 'a few exams'. For example Uefa level 5 cost around £9,000 and takes either 30 days intensive or 18 months and then there is no guarantee of passing, many fail. In order to apply for that you would need level UEFA level 4 which is around £3,500 and 18 days. You need UEFA level 3 to apply for that and so it continues.
The problem for any aspiring manager has after going through all that everyone else has passed the same extensive courses. So you can imagine how frustrating it must be for a manager to have to listen to some fan who details exactly where he went wrong just because he 'played a bit'.
As for man management, trust me they go on plenty of courses to hone that particular skill. Anyone that's been in any type of management job at a sizeable company knows the courses and football managers are no exception.
It seems as if you have really bought into the new cult of manager that's recently portrayed by the media. They do this to add personality to games in a similar way to the managers at WWE. Beneath the exaggerated personas displayed by Klopp, Mourninho Ranieri etc is a person that knows the job inside out and the interviews are just part of the circus. I would suggest virtually all managers are at very similar skill levels which leaves the money and luck to differentiate them. This would explain why Raneiri was able to guide Leicester to the Premiership and was sacked the next season to give one example of many similar successes then seemingly strange failures.
If you don't agree then why is it that each time a club goes for a manager it's from the same pool of ex-managers?
If you think managerial appointments come from the same revolving pool of failed ex managers you might be wrong.
Take a look at the league management career lengths of our 15 permanent managers post millennium to date. Only Johnson's is lengthy, four got past season five but didn't get to ten. The remaining ten barely registered as having a league management career at all.
If that's representative of league managers as a whole, then they don't stay on the merry-go-round for very long.
I'm afraid I also strongly disagree that because football managers are all qualified to the same uefa levels they are therefore all equally skilled. It's not like that in the rest of the world, why should it be in league management?