That might have been a plot-hole with the original plan for the OT, but once the ESB twist came about, then it no longer was about getting bodies with force powers to help, was it.Hang on, if Ahsoka was around 5 years after RotJ, what's with all the "Luke you're our last hope." BS? Why didn't Yoda and Obi-Wan enlist her help in confronting Vader? I know she's not technically a Jedi by that point, but come on.