Change has to come from Cuban

[KillerLeft]

the Mavs did not want to pay that for Brunson. (That was a big evaluation mistake imo. We will see.)

For me, this ends the discussion. 

I think once the trade deadline passed with him on the roster, taking into account what he meant to that playoff run and the other assets (or lack thereof) on hand, there was no actual choice to be made. 

If he had left for NY by turning down an even better offer from Dallas, I'd probably be over it by now.