Rick Carlisle hinted at a possible change last week after Darren Collison struggled in a loss to the Warriors.
"Right now, he's our starting point guard," Carlisle said then.
That isn't the case tonight in Philadelphia.
Dominique Jones replaced Collison in the starting lineup. Collison is averaging 12.9 points and 6.3 assists per game, but he's been wildly inconsistent offensively and has been poor defensively.
Jones, who opened the season as the Mavs' third-string point guard, is a much more rugged defender than Collison. The Mavs need a physical point guard to counter Sixers star Jrue Holliday, who is 6-foot-4, 205 pounds.