The problem with that is there really aren't a lot of Pop's old assistants floating around. His core staff has mostly remained intact (Budenholzer was with him for 18 years before taking the Hawks job) and he seems to have spawned more GMs (Danny Ferry, Sam Presti, Dell Demps etc) than coaches. And many of the guys who have gone on to coach haven't been all that successful (Avery Johnson, Mike Brown etc). I think Popovich is a tremendous coach but a lot of his success was having a superstar in Duncan that allowed that in your face coaching style. The same style that wore thin for Avery Johnson and ultimately led to his dismissal.
As for Adelman, I don't know which assistant I would go after. I can't think of any that had Adelman's gift for squeezing the most out of his roster, especially on the offensive end. I believe Rick is still a consultant for the Wolves but I'd love to have him in that same function with the Kings. Let him play the Coachie role and help with the offense but not travel with the team so that he can spend the tim with his family.
That said, Adelman's offenses weren't technical masterpieces. Which is to say he wasn't Fratello micromanaging the game from the sideline with scripted plays. No, they were simply read and react motion offenses that relied on having multifaceted players who could all shoot, pass and handle. The Kings players during the halcyon days talked about how they spent the majority of practices cutting, screening, passing and shooting.
It's one reason I could possibly see a trade for Josh Smith working. He can handle and pass and is a decent shooter (who often shoots too many low percentage shots unfortunately) and it would give the Kings a starting five (assuming Stauskas and not McLemore) who can all handle, pass and shoot. If JT were retained as the third big for dealing with full size front courts (Memphis, LAC, probably LAL if they resign Gasol and keep Randle etc) then that team would have a chance of being closer to Malone/PDA's vision of a team that shares the ball and shoots well.