Gregg Popovich believes he made a mistake in trying to change LaMarcus Aldridge as a player when he first signed with the San Antonio Spurs.

"I did talk with him several times during the summer. He just didn't feel comfortable," said Popovich. "It's 98.75 percent on me, and whatever's left - because I can't subtract that much - on him. But I tried to change him. I thought back to when Timmy [Duncan] came, and people said, ‘What are you going to do with Tim Duncan?' I said, ‘Nothing. I'm just going to watch him for about six months, see what he does.