Kyrie Irving opted in on the final year of his contract, but the Nets were more than comfortable letting him walk away. They have Ben Simmons as their point guard of the future and have grown sick and tired of Kyrie's constant antics.
With that in mind, one could only wonder that it shouldn't take a lot to get Kyrie to leave Barclays Center. He'll be a free agent at the end of the season, and the Nets shouldn't demand all that much.
So, in this hypothetical case, the Dallas Mavericks get him off their hands in a trade for a future protected first-round pick, Tim Hardaway Jr., and Reggie Bullock.