Football Perspective’s Chase Stuart crunched the numbers for how all NFL coaches have fared against the spread since 1978. Bill Belichick’s teams have covered 40 more times than not, and the next best record in that regard is Bill Walsh at 30 games over .500. They’re followed by Dick Vermeil, Tom Coughlin, and Marty Schottenheimer who are all tied at +23. Using that measurement, Bum Philips (-17), Joe Walton (-16), and Mike Martz (-15) were the three worst.
By winning percentage, Bruce Arians, Mike McCoy, and Jim Harbaugh are highest while Marc Trestman, Gus Bradley, and Rob Chudzinski were lowest — so, by that metric, five of the six on the poles were only head coaches in 2013.
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