The Buffalo Bills have had 4 different headd coaches in the span of 2000-present(Phillips, Williams, Mularkey, and Jauron).
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The Buffalo Bills appeared in and lost 4 consecutive Super Bowls.
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.
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One
There are currently 30 head coaches
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27
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zero ---------- The Buffalo Bills are in the AFC, so they would never be in the NFC Championship Game.