Coaching tree, legacy of Sid Gillman

ESPN celebrates the 100th anniversary of Vince Lombardi's birth with the "Greatest Coaches in NFL History" series, saluting 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.

The Sid Gillman coaching tree is documented in the chart below, followed by a feature on Gillman and short biographies of his many disciples.

This package also includes features on the Chuck Noll and Don Coryell branches of Gillman's tree.

Special thanks to the Elias Sports Bureau for research assistance in compiling this project.