Harden/Motiejunas/Capela is the future. I will happily move on from anyone else to add another piece to THAT core of three players. We desperately need to find a SF sidekick for Harden, a Scottie Pippen.
Add Harrell to that list. His upside is too high to just toss him into a deal, especially when GS is a 99% lock to repeat no matter what the Rockets do.