Fight On, Forever!

Best NFL coaches seem to grow on trees - USA Today
...Perhaps the greatest coaching tree in NFL history sprouted in San Francisco under Bill Walsh in 1979 and continued with his successor, George Seifert, through 1996. Including Seifert, the 49ers employed 10 future head coaches in that span, including some of the game's best over the last two decades. They are Dennis Green (Minnesota, Arizona), Bruce Coslet (Jets, Cincinnati), Pete Carroll (Jets, New England), Jeff Fisher (Tennessee), Holmgren (Green Bay, Seattle), Gary Kubiak (Houston), Rhodes (Philadelphia, Green Bay), Seifert (San Francisco, Carolina), Mike Shanahan (Oakland, Denver) and Sam Wyche (Cincinnati, Tampa Bay)...