Behind Dianna's firing spree

Sources say the real reason "Glee" star Dianna Agron dumped her management team is because her boyfriend, actor Alex Pettyfer, told her to. We reported last week that Agron, who plays pretty cheerleader Quinn Fabray on the Fox comedy, fired her manager, Lena Roklin, her agent, Leslie Siebert at the Gersh Agency, and her lawyer, Dave Feldman, because she was unhappy about her career's direction.

But we hear she's now signed with Pettyfer's agent, William Morris Endeavor's Thor Bradwell, and his lawyer, Steve Warren. Pettyfer and Agron will appear together in the sci-fi action flick "I Am Number Four," due out in February. Sources tell us the duo have been dating for about six months and are living together. "Her agents have to speak with Alex to get to her," one source said. We hear that the firing of Siebert, who had guided Dianna for years, "was particularly brutal." A rep for Agron had no comment. Pettyfer's rep did not respond to calls and e-mails.
source: nypost.com