Assuming you're right, this explains why the Jazz let go of Tucker rather than NWG (because the former was partially guaranteed, and the latter isn't). It may also help make sense of the NWG signing in the first place. Though NWG isn't the likeliest player to get playing time, he may have been willing to sign a very team-friendly deal, one that allows the Jazz to cut bait when needed. Oni was on the same contract, I think, but it appears Oni has earned his keep and will be retained. NWG probably remains as a depth piece for half a year, or as a salary piece in a trade, if needed.
EDIT: And then, assuming NWG is cut half way through the year, the 6'-5" Forrest (with fairly strong defense and positional flexibility on D) becomes our PG depth piece, given the expanded role two-way players can play this year. Makes a lot of sense, if it turns out this way.