TVGuide.com’s Michael Ausiello reports exclusively that heads are rolling over at Boston Legal. Julie Bowen, Mark Valley, Rene Auberjonois and Constance Zimmer have all been let go from the show, sources say. A show insider confirms that "their contract options were not picked up."

To fill the void, Night Court's John Larroquette is joining the show as a series regular next season, but he won't be reprising his Emmy-winning role from David E. Kelley's The Practice. Instead, he will be playing an attorney from the New York offices of CP&S. Also Dirt's Tara Summers will be coming on board as a young associate. Finally, current cast-member Christian Clemenson (Jerry) has been upped to a series regular.

See story:
http://community.tvguide.com/blog-entry/TVGuide-Editors-Blog/Ausiello-Report/Exclusive-Boston-Legal/800016952