Agreed. Problem with Simmons is much more than bad FT shooting; he has a mental block, the yips, the heebie-jeebies, whatever you want to call it. He's a head case on offense in crunch-time, and it's gotten progressively worse since he's been in the league. This isn't like a catastrophic knee injury where time and dedicated rehab will eventually make it better. And Simmons has shown little indication that he understands or is able to address the root causes of his problem.
Morey has no other option than to wait it out and hope a decent enough deal will come along for him to salvage some of his pride. I don't see how anyone in their right mind would trade what he's asking for Simmons; he'd be lucky to get McCollum straight up.