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    Kingsbury has experience working with some of the top quarterbacks in college football, as he coached Patrick Mahomes at Texas Tech, Johnny Manziel during his Heisman Trophy season in 2012 at Texas A&M and Case Keenum at Houston.

    At USC, Kingsbury will have the opportunity to work with reigning Heisman Trophy winner Caleb Williams, a junior who will be one of the top prospects in next year’s NFL draft.

    “This is a Lincoln-led effort,” a source with knowledge of the situation told ESPN. “He’s going to attract elite talent in coaching and he wants to do everything he can to make his team better.”

    USC does have an open quality control position working with quarterbacks. The school brought in veteran NFL assistant Will Harriger last year, in part, to work with Williams and help him with NFL concepts and preparation. Harriger has since left for a job with the Dallas Cowboys. It’s unclear what specific role Kingsbury will have, but that spot of a veteran quarterback coach with NFL experience has been vacant at USC.

    Kingsbury’s contract with the Cardinals ran through 2027, as he got fired 10 months after signing a six-year extension. That means that the vast portion of his income is still expected to come from the NFL.

    NFL Network first reported that Kingsbury would join the Trojans’ staff.