Doc's tenure with the Clippers has been disappointing and it's fair to question how much he owed his success in Boston to the combination of Tom Thibodeau's defensive expertise and a motivated and hungry Kevin Garnett. He's a players coach and he'd absolutely be a good choice for a veteran roster with at least one grumpy superstar who just need a coach to rally around but I don't think he's a great fit for our roster.
Nate McMillan is available again and he's been near the top of my head coach wishlist dating back to his days in Portland. His teams always play hard, are no worse than league average defensively, and he's spent the last 14 years building relationships as part of the Team USA coaching staff. I don't know why he doesn't get more respect after he helped turn around the Jail Blazers and then coached trade cast-offs Victor Oladipo and Domantas Sabonis to All Star performances in Indiana. He's much more in the Mike Malone mold of demanding respect and focusing on fundamentals so I don't know if the NBA 3.0 Kings would be interested, but if this new GM, whoever it is, wants to turn things around in a hurry they need to fire Luke Walton ASAP and then call Nate McMillan. Draft a couple of grinders and bring in a blue collar coach and start establishing the new team culture right now.