MILWAUKEE (AP) – When Marquette coach Terri Mitchell picked up the phone to talk with Tyler Summitt about the opening on her staff, it figured to be little more than a courtesy call.  Mitchell knew his pedigree. He is the son of Hall of Fame coach Pat Summitt, who won eight national titles and more games than anyone else in NCAA college basketball in 38 years at Tennessee, Tyler Summitt has been around the game longer than some veteran coaches. But he was just finishing his senior year at Tennessee and, now 22, was barely older than many of the Marquette players.  Forty-five minutes later, Mitchell had asked Summitt to come to Marquette for an interview. By the end of the interview, he had the job.