The African Manager merry go round

Shaibu Amodu has been sacked as manager of Nigeria, third place at the Cup of Nations he had been manager of Nigeria 4 times. Why did he keep going back to a job he had repeatedly been fired from and why did Nigeria keep rehiring him. Managerial recruitment globally lacks any kind of Logic except for a few rare exceptions, those exceptions are often teams which are either consistenly of progresivly succesfull. Manchester United, Arsenal, Liverpool, Doncaster, Accrington Stanley, Stoke are a few examples.
Issues boards repeatedly fail to consider include:
If you have just appointed a terrible manager what makes you think you have the capacity to then go and appoint a good one.
A managers true ability cannot be measured until about 100 games, results in a handfull of games are no indication of a persons capabilities.
Success needs to be maintained the time when a manager needs the most resources is when he is at his most successful.
If a manager was unsuccesful over a period or is constantly moving teams he is unlikley to be successful with you. - This applies to the hoards of French and Slavic missionary managers who seem to spend their lives constantly moving around natins with little to no success.

If African teams want to be successful they need to pick managers with a proven record of success and give them time to build a team. - Egypt is the best example of this Hassan Shehata has been in charge for 6 years straight and though he hasn't qualified the for a world cup he has won 3 straight cup of nations.