Jalen Rose walked through the doors of the high school that bears his name and into the cafeteria, which doubles as a shorter-than-regulation basketball court. He hugged a stream of students as they headed to class and chatted up faculty and staff in the hallways. The former NBA guard and member of Michigan 's Fab Five opened the Jalen Rose Leadership Academy in 2011, four years after retiring from the league. As busy as he is, the 6-foot-8 Rose is a regular in the building and outside when people in the community pull up for free food. “Jalen is here all the time,” said Jazmine Allen, principal and superintendent of the open enrollment, tuition free public school in Detroit . "I think people think that the school is named after Jalen and he is just a celebrity. He actually is a normal fixture here. He is not just the board president and founder of the school.…