Morey had a analytics based philosophy and a master at maximizing assets... until the last couple seasons. In their desperation to get over the hump they made some moves that went against the methodology that got them to the brink. Stuff like signing Carmelo and trading for Westbrook, players that did not fit the analytics that the team had been built around. They have used up virtually all their trade capital in order to build a roster that seems significantly worse than it was a couple seasons ago.
They really over extended themselves. Virtually all their draft picks for the next SIX years are owed to other teams, they have no cap space for years, James Harden is probably their only asset that would give them a good haul in a trade.
Morey got out while before the ship sank. If the new GM isn't a miracle worker that franchise is about to go down the drain.