Man, what is the love for Reggie Jax?
He's giving you 15 points and 5 assists on horrible efficiency. 28% from 3pt land and 42% overall. A PER of 15 and a TS% of 50. Average defender and average playmaker. Shoot-first PG who isn't all that great at it.
He'll be looking for 4/$40mill or something close this summer. I get the Boston connection but whoever pays this guy big money is going to regret it.
I'd much rather make a run at Isiah Thomas Jr if we're adding a PG. He's cheap, relatively young, and one of the most efficient volume-scoring guards in the league.
I agree with aforementioned statement and also do not understand why would anyone want Jackson. He is a (inefficient) score first point guard who cannot shoot - we just got rid of one of those.
Also, Steven's system emphasizes ball movement, so Smart is a natural fit at the point. He can handle the ball, move it in the half court, shoot the 3, and play very solid defense. If you draft a forward with decent handles (like Winslow), he would complement Smart perfectly. No need for another point guard.
On the other hand, to answer the question, it will take Olynyk + Bradley to get Jackson (+Perkins to match salaries), and about ~12 mil/year to keep him. As I already said, I would much rather tank the year and draft either a good big (Towns, WCS) or a good SF (Winslow, Johnson). Jackson money could be instead spent on Asik (if SF is drafted), or Wesley Matthews (if we get a big in the draft).