Colorado coach Deion Sanders is putting the finishing touches on his coaching staff makeover with spring practice starting Monday. He will be without one of his good friends, too. Hall of Fame defensive lineman Warren Sapp announced his resignation to "pursue other opportunities," the school said in a statement. "CU athletics thanks Warren for his contributions to our football program over the last two seasons and for his commitment to our student-athletes." Sapp was the defensive pass-rush coordinator for the Buffaloes last season. Sanders promoted Chris Marve to defensive coordinator after the departure of Robert Livingston, who recently took a job with the Denver Broncos as their passing game coordinator and secondary coach. Livingston spent two seasons with the Buffaloes, including the year Travis Hunter won the Heisman Trophy as a two-way standout. Marve was the defensive coordinator and inside linebackers coach at Virginia Tech from 2022 to 2024.…