Stray I also didn't know Susan and Lori prior to their time at QVC, but yes, you can Goggle them and find out they had careers prior to coming to QVC - definitely they added big time to their bottom line with their QVC success though.
BTW- I had no idea about Dennis Basso or Judith Ripka before they became "personalities" at QVC, yet both were already Madison Avenue (more?) before QVC, and Chaz' California salon? I think it was successful where it is, but nothing like the money-maker his foray into TV land has been.
I think the reason for success in retail isn't just creativity - it's also business acumen and hard, long hours of work. The stars make it look easy, but that part of what they do is smoke and mirrors just as much as my daily make-up is. Except for big inheritances or lotteries, I'm not sure any path to big money is easy.