Jackson should be cut IMO.
After watching him, Nader, and Yab play last year for the Claws, I think he has the lowest ceiling by far of the three.
He is a legit PG - aside from that he doesn't have much going for him. There is literally no aspect to his game that looks like it will ever be as good as an average NBA player.
He is basically Phil Pressey 2.0. We can get a replacement for him easily, the D-league is full of guys like Jackson.
I don't see us keeping him unless Brad and Danny really want another PG on the roster.
Nader, Yab, Semi, and even Bird look like they have unique skills and are just a couple steps away from being solid NBA players. All these back of the bench guys are unlikely to play much; might as well go with the guys who have upside.