MAVS NEWS:

[F Gump]

... and Dallas moves enough under the 2nd apron to cut Exum and sign Nembhard....

Rushing to get Nembhard on the 15 man is NOT a goal for DAL and carries no benefit to the team. Or to Nembhard either. Nor do they really need to make any move at all to make it possible.

They will let the 50-game limit run its course (which happens in late Feb, or later, depending on games lost to injury). Then they will waive Exum (if they haven't used his expiring as needed trade filler) and convert Nembhard's deal to 15-man, minimum salary, 2 years. Assuming they do nothing else between now and then, by then they will have more than enough cap room to do that.

By doing it that way, the cap hit this season on RN contract, and his tax hit, will be lessened. 

In the meantime, there is no difference in RN's game, ability to play, pay, etc etc. He's just being paid off the books, so to speak, for the time being.