Minnesota needs assets. By spinning defense-optional Anfernee Simons to a Philly team that may lose Harden, they could acquire a veteran forward in Harris who is a clear upgrade over Prince, plus 3 first-round picks, including #3 overall this year.
For Portland, getting KAT for merely Simons, #3, and a future first-rounder could be called a steal. And Philly acquires another young scoring guard to complement Embiid in a potential post-Harden world.