Roots of coaching trees run deep
NFL's DNA flows through branches that connect game's past to its present
Welcome to ESPN's "Greatest Coaches in NFL History" series. In celebration of the 100th anniversary of Vince Lombardi's birth, we salute the finest innovators, motivators, tacticians, teachers and champions ever to stalk the sidelines. Follow along as we reveal our list of the top 20 coaches of all time and document the lineage of the league's most influential coaching trees.
ong before it was the fashion, Sid Gillman loved the long ball. His San Diego Chargers ...
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GREATEST COACHES IN NFL HISTORY
ESPN lists the top 20 coaches of all time and examines the most influential coaching trees.