Yahoo Sports reports: The Dallas Mavericks officially announced Dusty May as their new coach just a few hours before entering the NBA draft with the ninth pick on Tuesday night. May is making the jump to the NBA less than three months after leading Michigan to its first NCAA championship since 1989. The Mavericks made their choice to replace Jason Kidd official on the same day they could select the next young player who would be part of building around 2025 No. 1 pick and reigning Rookie of the Year Cooper Flagg, who turns 20 in December.