i think people are very hard on Shelley , i mean by 1979 Charlie's angels slipped in ratings to #12 and Kate quit or was fired so the new angel hunt began and a lot actress were considered but Arron spelling choose Shelley as tiffany Welles but unlike Cheryl ladd "kris " they decided to slow introduce tiff into the mix and barley gave her any thing to do and by the time she was integrated into group 5th episode of season and wasn't featured until 10th episode "angels on campus" and Shelley was great but the ratting dropped and the press had a filed day and producers blamed Shelley for witch even Cheryl and Jackie said wasn't fair and it wasn't all Shelley fault . Shelley did the best she could but how could she replace bri ? and she wasn't given a chance by public and producers