Oklahoma AD Joe Castiglione will retire after 28 years leading the Sooners, per ESPN's Pete Thamel, who adds Castiglione will remain with the department after his successor is hired in an AD emeritus role to ensure a smooth transition. Thamel: "The timing of the announcement prior to this season, sources said, will give Oklahoma officials adequate runway to hire a replacement during the upcoming school year. The timing of the move will allow OU to make a hire in the upcoming months and transition with Castiglione on campus. Castiglione, 67, initiated the conversation about his retirement with school officials nearly a month ago, per sources, and they landed on this plan together. That job would allow Castiglione to continue to work on special projects at the university, as he intends to live locally." (link)