Veteran New York talent manager Erica Tuchman has left One Entertainment to open her own management/production company, Perennial Entertainment. In addition to providing management services for clients, the company will develop projects for film, television and theater. Tuchman, who was a talent manager at One Entertainment for the past six years, has a client roster that includes Broadway actress and Smash standout Megan Hilty, four-time Tony nominee Kelli O’Hara, Kathy Najimy, Claire Coffee (Grimm), Vincenzo Amato (Miramax’s Golden Door), Tony nominees Maria Dizzia and Kerry Butler, and Adrienne Warren, star of Broadway’s upcoming Bring It On. Tuchman also served as an associate producer on Tom McCarthy’s Fox Searchlight film Win, Win.