4 losses in a row and Jazz is officially out of the play-in picture now. Mavericks have 2 games left, against Bulls and Spurs. Bulls guaranteed their 10th place so it's very possible for Mavs to win both games. Thunder have only one game left and they'll play with Grizzlies. Normally it'd be a though game but we probably see big rotation before play-off so Thunder may win this one. Last place for play-in will be determined in last games literally. I'm okay with both teams, either Thunder or Mavs for play-in but I don't think they'll get a spot in play-off.
I think Danny Ainge really isn't thinking of the playoffs like it's his priority. I mean he has young players, and lots of draft picks on their roster. I believe that they will be using it to get some better role players in the off-season.
As for the Mavericks, the door is still not closed for them, but it's hard that your are relying on other teams just for you to get the 10th spot. I mean if Thunder will lose against the Grizzlies, and Mavericks somehow manage to win those 2 remaining games, they will get the 10th spot. If the Thunder manages to win against the Grizzlies, and the Mavericks lost one game of their remaining 2 games, they're out of the league already. Now if the Thunder, and the Mavericks manage to win on their remaining games, we will see a tiebreaker between the 2 teams, and whoever wins will get the 10th spot.
TBH, I would love to see the Mavericks getting that 10th seed rather than the Thunder, and they won against the Kings, so maybe that built a bit of momentum for the team. The remaining 2 games of Mavericks isn't that hard because it's against the Bulls who are already in the play-in tournament, and against the Spurs who are already eliminated. Still, anything can happen and Mavericks can still lose to either one of them. Either way, the Mavericks are in a tough situation right now.