Sarah Lutman, former s.v.p. of content and media at Minnesota Public Radio/American Public Media, is departing her current position as president of the St. Paul Chamber Orchestra to start an independent consulting practice, effective March 1. Lutman said in the local Star Tribune that she’d wanted to establish a consulting business for years. “With my adult children both due to complete post-graduate education this year,” she said, “and having been able to help the SPCO chart a clear strategic direction and plan, the timing seemed right for me to make this move.”