Grantland has a video on the football coach who never punts. Why doesn’t he? Because statistically, it doesn’t make sense.
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.