Not a ton, but both Fox and Monk lead the team in possesions. I've said it before, I'll say it again, it's probably wise to look at that stat and why you should care is because specifically the top of the iso list in possessions is littered with all star level talent, MVP level players, and better teams. There are a few exceptions, Barnes has been one historically. The reason Dallas probably went after him is because his numbers at the time were near Melo. The skill was there, the mindset was not. He topped out around 20 per game and that team needed more.
Here is the list separated by the top iso options in the league:
https://www.nba.com/stats/players/isolation?SeasonType=Regular Season&dir=D&sort=POSS
Fox is all the way down at 27 but the Kings run a lot of system, and that's exactly what has been costing them. Teams are starting to take away the DHO and Fox isn't always there to ram the basket home.