If your definition of NBA player is someone who could be useful just in limited situations then we agree.
But Imho this is not a nba ready player.
Yes, what I mean is limited situations.
Also, if the Celts don't sign Tacko and make him a part of the 15-man roster, another team will steal him from the Celts.
There will be teams lining up to sign Tacko because of the hype he will generate.