In a move that will shock absolutely no one, sources confirm that UPN has dropped Shannen Doherty as the star of its new fall sitcom, Love, Inc. The former 90210/Charmed diva — who just last week was flown to New York and paraded before advertisers at the network's upfront presentation — was to have played a savvy matchmaker whose own love life left something to be desired. UPN isn't commenting, but an industry source says Doherty was a casualty of bad research, adding, "Preview audiences were not responding to her." The role will be recast. Meanwhile, Alyssa Milano, stop your snickering!