Joe Castiglione is set to retire after a historic tenure as OU's athletic director. Here's a look back at some of his greatest achievements.

Castiglione created the launch pad for the golden era of OU athletics. The Sooners have won 26 national titles during Joe C.’s tenure, 57.8% of all the national championships OU won in its history.

Entering his 28th year and after 26 national titles, Joe Castiglione formally announced his decision Tuesday to retire as OU's athletic director.

NORMAN — The longest-tenured current athletic director in major college sports plans to retire. OU's Joe Castiglione will step away from his full-time role after 28 years, but is staying on as ...