Mavericks' Rick Carlisle and Donnie Nelson depart: What's next for Mark Cuban?

The Dallas Mavericks have been a model of stability among NBA franchises.

Front-office executive Donnie Nelson joined the team in 1998, and Rick Carlisle had been the coach since 2008. Those are lifetimes for NBA executives and coaches. And Mark Cuban has been the owner since 2000.

That stability crumbled in less than a week as the Mavericks parted ways with Nelson and Carlisle decided to walk away from a team that features Luka Doncic, the 22-year-old MVP-caliber star.

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