Since 1930, when the first tournament was held, only Franz Beckenbauer and Mario Zagallo have won the Football World Cup as players first and then as managers.
That would suggest two things: one, that the odds are definitely ranged against Diego Maradona, Argentina’s current manager from becoming the third person to do so (unless God decides to take a hand in the matter); and two, that managing a team takes more than mere footballing skills.
The best football managers are usually just that: good managers (although many do have a fine understanding of the game). Their primary skill is in managing and motivating players. Ultimately, their success is a function of their ability to get the best out of their players. In that aspect, they are quite similar to the managers of corporations.
Is it any surprise that most football managers prefer sharp suits?