NORMAN, OK—A coach is defined by winning championships, but one of the easiest ways to determine who is truly great is to look at his coaching tree.

History is full of coaches who had strong coaching trees and assistants who left their programs to take over as head coaches elsewhere and have success.

Haden Frye, Dan Snyder, and Bud Wilkinson are just a few coaches whose coaching trees are legendary.

Stoops was a result of those legendary trees, learning from Snyder who learned from Frye, and two months ago he had a strong tree of his own starting to grow despite only being a had coach himself for little more than a decade.

Kevin Sumlin, Mark Mangino, and Mike Leach were by far the strongest branches on that ...

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