How do you know AZ wasn't going anywhere?
They tried to trade him a year ago
They waived him
They didn't protect him in the ED
Team had PLENTY of time to get Ghost for free if any of them wanted him. Time for people to realize that no one wanted him, including us, unless paid off to take him. Other teams tighter on cap could have made a move to unload another wanted player and replace him with Ghost for free. None chose to do so.
You are assuming AZ's price would never increase. We have no idea. After trying to move him for a year and using 3 different avenues to do so with no takers, they pulled the trigger when one finally said they would take him.
I personally thought he had trade value. I was wrong. Not sure why others can't accept it. No GM wanted a proven 40 pt Dman for free in Ghost....including us. That's reality.