Keith Piper
... that Keith Piper successfully perpetuated the single-wing, "the formation-of-choice during football's leather-helmet era," for decades after it had been discarded by other teams?
... that <b id="mwGrg"><a href="./Keith_W._Piper" id="mwGrk" rel="mw:WikiLink" title="Keith W. Piper">Keith Piper</a></b> successfully perpetuated the <a href="./Single-wing_formation" id="mwGro" rel="mw:WikiLink" title="Single-wing formation">single-wing</a>, "the formation-of-choice during <a href="./American_football" id="mwGrs" rel="mw:WikiLink" title="American football">football</a>'s leather-helmet era," for decades after it had been discarded by other teams?