When Chris Mullin was hired, the hope was he would follow in Fred Hoiberg’s footsteps as the favorite son who turned around his foundering alma mater. Instead, it has followed the script of Clyde Drexler and Eddie Jordan — NBA alumni who struggled while coaching their former schools. Two-and-a-half years into his first job as a coach at any level, Mullin has an ugly 32-53 overall record, and an even worse 8-36 mark in Big East play. St. John’s is 0-8 in the conference for the second time in three years, already with three losses to expected doormats Georgetown (twice) and DePaul entering Tuesday’s home contest with Creighton. Athletic director Anton Goff insists his confidence in Mullin’s ability is undiminished, saying, “He has my full support.” Yet after SJU finished 8-24 and 14-19 in Mullin’s first two seasons, this was supposed to be the season St. John’s started to win, with the NIT seen by the coaching staff as a minimum goal. Instead, the Red Storm may finish in the league’s basement. Here are three factors that have contributed to what is looking like another lost season in Queens: Coaching The Post spoke to several sources in and out of the program who believe a coaching staff shake-up should be in order. The staff’s lack of experience, aside from primary recruiter Matt Abdelmassih, has been glaring. Mullin and assistant coaches Mitch Richmond and Greg St. Jean never coached before at the college level, and sources believe St. John’s needs to hire a former head coach to aid Mullin. During the summer, disgraced former Rutgers coach Mike Rice was around the program, and there was hope he could be brought on board, but it never materialized.