Kleber was and is extremely important in the playoffs. He allows Mavs to play 5 out and I really dont see them swapping him for Holmes who is much less valuable player. Would love it though and I would've given good money for him when he was a free agent few years ago
I think the idea there is they don't have to head into 2023 UFA with Kleber/Wood/Powell all UFA and they get security with Holmes locked into to 1 more seasons with a player option. And he'd easily be the best lob threat for Luka on that team. I agree Kleber is more valuable because of the shooting and versatility, but thinking from a team context pov from them and how they balance their book.