Juwan Howard is not in trouble and is returning to his role as Michigan’s head coach. Athletic director Warde Manuel made that announcement on Friday night, noting Howard has been cleared both medically and after an investigation into a recent incident he was involved in. Howard had not resumed his official duties since undergoing heart surgery on Sept. 15. Earlier this week, a program source confirmed a confrontation between Howard and longtime strength and conditioning coach Jon Sanderson occurred at a practice late last week. Manuel addressed both of those situations in his statement. “Juwa…