Replace Adam Gregory with Ronn Moss, and replace "Hope" with Taylor, and you have Ridge's storylines. Ergo, a good cast for his offspring.
I prefer a good actor who is also magnetic and interesting. Ronn Moss is certainly not a good actor, but he had some kind of an X-factor that worked in his favour. And Hunter Tylo was beautiful like a goddess in the 90s. You didn't really care that they weren't top-notch actors somehow. But the same thing didn't work with Adam Gregory. He lacked the X-factor and he wasn't convincing as an actor either.
Jacqueline MacInnes Wood (Steffy) looks so much like Hunter AND is a great actress. B&B should use her more than being prop for Liam and Hope.