"Hi I am Kevin Pritchard and if you want Paul George, I want a Brooklyn 2018 pick and a Lakers pick along with two of your starters. I have zero guarantees that Paul George wants to sign an extension, but he did say he wanted to play for the Lakers the following year. I want some talents and assets back for this man before he walks."
Sounds like Pritchard is being greedy than Ainge is being stingy lol. Btw I made that up but I am guessing that is how the discussion went

No guarantees of signing an extension but a one-year rental? I am not giving up two valuable assets for him. Paul George can walk away from Indy and go to his Lakers, or Pritchard can trade him elsewhere for a couple of nobodies because he does not want to deal with Ainge.