He is still a great player, what happened to him? It is true that he did not that much the last season's Finals but he still can play right? He may not be the same at the time Linsanity is a thing but I think still had it in him, just give him a chance.
There's a rumor about him that I've just searched.
https://bleacherreport.com/articles/2847022-jeremy-lin-would-consider-playing-in-asia-dreams-of-playing-with-his-brother