Sullivan just finished his second season as quarterbacks coach after serving as the Giants wide receivers coach for six seasons. This past season, Manning enjoyed the finest season of his career. He earned his second Super Bowl MVP and passed for a career-high 4,933 yards during the regular season.
He had 29 touchdowns and 16 interceptions, down from the 25 interceptions he had in 2010. Entering the season, Manning said he wasn't a 25-interception quarterback and he was able to cut that number down with Sullivan's help.
During 2010, Manning did set a career-high in interceptions but he threw for 4,002 yards and a career-high 31 touchdowns in Sullivan's first season as quarterbacks coach.
Sullivan joins former Rutgers head coach Greg Schiano, now the head coach, in Tampa Bay.
Sullivan may not be the only assistant leaving after the Super Bowl. Jack Bicknell Jr., the offensive line assistant coach who works with offensive line coach Pat Flaherty, interviewed with the Kansas City Chiefs for their offensive line coach opening, according to the Newark Star-Ledger.