Giants ' coach Tom Coughlin is 65 .
Kansas City 's Romeo Crennel is 64 , and the Bills ' Chan Gailey and Seattle 's Pete Carroll have already turned 60 this year .
Giants ' coach Tom Coughlin is 65 and Kansas City 's Romeo Crennel is 64 , and the Bills ' Chan Gailey and Seattle 's Pete Carroll have already turned 60 this year .