It’s pretty clear what the issue is. Harden is trying to make PG play like Luke Kennard. This is the same issue LeBron had with Dwayne Wade and Bosh.
Links are here: you might have to change to EFG% https://www.pbpstats.com/on-off/nba/player?Season=2023-24&SeasonType=Regular%2BSeason&TeamId=1610612746&PlayerId=201935
It’s like trying to start Lou Williams in 2020 over Pat Bev.
I don’t know enough about the clippers right now, haven’t watched them much. But why are people so stuck on the starting aspect? There’s a case to be made for a lot of teams that bringing one of their better players off the bench and running a second unit may make them better as a whole. Lineups are so dynamic in basketball that players are playing with different players all the time, it’s not like starters only play with starters. Not saying this should be kawhi or PG or Harden or Russ. Just saying, there’s a real possibility the team would be better bringing one of the three bigger stars off the bench.