Interesting breakdown of Mav's free agency. Mavs doing "Toronto Raptors type of acquisitions." "Where is the big inefficiency right now in the NBA? It's non-superstars getting superstar money" and given the cap logic the next level of players down will automatically be underpaid - which is where the value and efficiency is.
https://www.youtube.com/watch?v=KRJUHC-XMLg&t=410s at 6:35
Some will see this as just a post-fact justification of an unsuccessful free-agency. But I tend to agree. If you are not getting the superstar that you value within your system, or he simply doesn't want to live in Dallas, why overpay for another and get stuck with an overpaid player on an immovable contract? That is not a winning formula. Either pay the proper value. Or underpay. Never overpay. Seems like a sound logic to me. Oh, and if an opportunity doesn't present itself this free-agency or trade window, keep the cap room and wait for another. You have no aging superstars and are not in the rush.