a 1979 writeup on Shelley
According to one 1979 writeup, Shelley was welcomed by her co-stars Jaclyn Smith and Cheryl Ladd when she joined Charlie's Angels that year. And why not? They were both consulted on Shelley's selection as Charlie's newest Angel. It's interesting to read that even Farrah Fawcett, who was fulfilling her final three guest appearances on the series that year, made Shelley feel at home as well.
Shelley Hack, Charlie's lovely new Angel