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Cal professor David Romer concluded that teams should not punt when facing fourth-and-4 or less; NFL stats analyst Brian Burke has detailed the need to rethink fourth-down decision-making; Football Outsiders has conflated punts with turnovers. You’ve even read about it on this site. Most fans and analysts who are willing to accept that change is a fundamental part of life have embraced the idea that automatically punting on fourth down doesn’t make sense.
So why do teams at all levels remain so rote? Chris Kluwe may have turned the Internet into his personal pulpit, but he can’t be that persuasive. Romer got it right way back in 2005: Coaches are afraid. No one wants to be the guy who gets fired because he stopped punting. And the same fans and analysts who clamor for innovation are actually fueling that fear.
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– http://www.grantland.com/story/_/id/9970245/grantland-channel-coach-never-punts