David Jacobs, who was running Knots Landing at the time, picked up on Dynasty's problems early on, saying at Dynasty's commercial peak in 1985 (i.e. Season 5 finale, the Moldavian massacre) that Dynasty would soon run into trouble unless they put a stronger focus on storyline telling than what they have been doing. Sure enough, midway through Season 6 of Dynasty (a matter of months), there was talk of crisis.
Yes, as I recall it was a brief TVGUIDE article from early in 1985, where Jacobs and Esther Shapiro were asked what they would do differently if they were making each others' shows. Esther, of course, focused on making the DALLAS women tougher, singling out Miss Ellie whom she'd make "a much stronger character" (which presumably means she's have Ellie get raped and have affairs).
A year or two later, Jacobs lamented that "Linda and Joan don't even seem like the stars of the show anymore" (and Karen Cellini, after being fired, chimed in by saying, "All anybody wants to see are Linda and Joan").
Eternally tone deaf, the producers would later say that, had they to do it over again, they'd focus even more on the younger character (which presumably means less on the geriatric principals) unaware that they were already doing exactly that. (Diahann Carroll said the shift to the younger characters was what killed DYNASTY).
But pointless, time-killing bedroom scenes amongst the non-wrinkly cast are easier to write.
All too often, it seemed -- then and now -- that the writers simply had no idea what they were doing. (Something Paulsen observed about his predecessors' work when he came in for Season 9).
As John Forsythe said, the producers (self-evidently) "didn't know what they wanted (for the show)."
But they did seem to want DYNASTY to be all thngs to all viewers. Which rarely works.
What I found so frustrating about Esther Shapiro was that she would often cite what the show needed to do -- and then that never happened. The public statements were just that, and had little impact on, or connection with, where DYNASTY was going to go,