As far as I know, a few years ago, Mark Cuban attempted to assist West by covering the costs of his treatment at a rehabilitation center and even providing him with housing. However, it seems that this was useless, since last year West once again created a lot of problems for himself. I think he's hopeless now.
If the person himself doesn't want to change, then it's very hard for him. Even with outside help, it can't be done, it should really start from within. It's good that others are willing to help him maybe because they might have cross path with West in the past.
I also remember Lamar Odom who might have lost a lot of money as well and went into depression and it was reported that the late Kobe Bryant bail him out from his debts and loan and the Mamba was the one who paid everything in his behalf does why we see him being emotional when the news of Kobe's accident went public.
Wealth management is a big factor for those professionals, I hope everyone in the league or out learned their lessons and will make sure of their future even if they go out of the PRO.
Lamar Odom was addicted to gambling or bar and girls? I hope he is doing well now, Mamba is one of the most generous and kind player in NBA.