Dallas' hopes for a significant roster shuffle around Luka Dončić failed to materialize, but Dončić will return from his impressive Olympic exploits in Tokyo to a completely new coaching staff and front office in Big D. It's no accident that new Mavericks coach Jason Kidd stayed even longer in Latvia huddling with Kristaps Porzingis than the team's delegation spent in Slovenia for the recent signing of Dončić's $200-plus million contract extension, since coaxing a bounce-back year out of Porzingis is likely the key variable in the Mavericks' quest to win a playoff series for the first time in more than a decade.