Angel One was based on a Phase II...I thought there was at least one more, but I can't think right now! To Google!
No it wasn't, or Worley Thorne would have received a screen credit.
AFAIK, there was only "The Child" and "Devil's Due", plus the set-up of Riker and Troi being past lovers being lifted from "In Thy Image" and plonked into "Encounter at Farpoint". "Genesis" was vaguely similar in set-up to "The Savage Syndrome", but it was mostly coincidence.