EAST RUTHERFORD, N.J.—The Giants had a reputation for being old-fashioned under Tom Coughlin, the 69-year-old former head coach who in his resignation remarks last week complained that today’s players lacked toughness and begged out of games because of a “toothache.”

Yet despite the Giants’ fusty image, the coach who succeeds Coughlin, who according to a team source will be Giants offensive coordinator Ben McAdoo, will inherit a football program that is among the NFL’s most innovative in the field of sports science.

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