The only way you trade IT to the Pacers is for George, period. The leverage we have is that IT is going to re-sign with Boston, while Paul George is good as gone. That's a huge difference even if you feel George is the more valuable player. Then you want to do it while not losing any cap room.
IT/Bradley/Crowder <==> George for example.
Makes George our only FA next summer, and clears room for Hayward and Fultz.
Smart / Fultz / Hayward / George / Horford
bench: Rozier, DJax, Brown, Zizic, Yabusele, FA
EDIT: to be clear, you probably don't do it, because these are people, and it matters that we don't disrespect IT after his borderline MVP-level season.