Coaching tree, legacy of Bill Walsh

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 Bill Walsh coaching tree is documented in the chart below, followed by features on Walsh and his disciples. This package also includes a feature on the Mike Holmgren branch of Walsh's tree.

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