It simply isn't. Everything tells you exactly the opposite. 11 of the current top 25 coaches have been at their job 3 years or less. Another 3 have been there 4 years or less. Here's the list of current top 25 coaches who have been at their schools more than 4 years:
Saban
Meyer
Dabo
Stoops
Gundy
Jimbo
Holgorson
Shaw
Malzahn
Ken Niamatololo (sp?)
Kirk Ferentz
Of that list, 8 guys won a conference or national title in their first 3 years. The only ones that didn't are Gundy, Niamatololo (wasn't in a conference), Ferentz (won a co-title in year 4).
You hire until you get a good coach. Waiting around doesn't pay dividends.
Saban
Meyer
Dabo
Stoops
Gundy
Jimbo
Holgorson
Shaw
Malzahn
Ken Niamatololo (sp?)
Kirk Ferentz
Of that list, 8 guys won a conference or national title in their first 3 years. The only ones that didn't are Gundy, Niamatololo (wasn't in a conference), Ferentz (won a co-title in year 4).
You hire until you get a good coach. Waiting around doesn't pay dividends.
