nineteen
5
There are 32 head coaches (one for every team) and a lot of assistants.
charlie weis navy and 2 others in 08 09
5
6
50000
12
20
As of right now the Buffalo Bills have had 15 different head coaches.
1 head coach (hence the name "head") but can have up to as many 'other' coaches. (abviousley not anything above 10)
Since 1933, the Steelers have had 16 different head coaches.