In 2001-02, Person's first year back in the city where he spent the first six seasons of his career, the Pacers acquired a young player with tremendous talent but a troubling attitude.
That player was Ron Artest.
Indiana needed to find a way through Artest's prickly shell to enjoy the fruits that his game had to offer.
Person went to work.
"When I got there he was playing well defensively," Person said. "He was a great defensive player. But he was having some issues conforming to the rules, conforming to the things [head coach] Isiah [Thomas] wanted to do, and Donnie asked me to work with him with the blessing of Isiah and with Ronnie, I told Ron, 'You don't know me. All I'm asking you to do is trust me.'
"I said, 'Whatever I say from this point on goes. I don't need any feedback from you; I just need you to listen to what I tell you to do.'
"He agreed to do it. He didn't have any reason to trust me, but he let his guard down and allowed me into his inner circle, and from there we have grown every year."
Artest averaged 10.9 points in his first half-season in Indiana. That number jumped to 15.5 points in 2002-03 and 18.3 in 2003-04.
"Without Chuck, I wouldn't have been an All-Star," Artest said. "I was good, I was all right, I had really good defense, but then Chuck turned my offensive game and he made me a threat. That's when it started. I was always able to play basketball, don't get me wrong, but Chuck made me a threat."
Walsh said he never saw Artest work harder than when he was practicing with Person.
"He made Ronnie work unbelievably hard," Walsh said. "Everything he did, he did full-speed, full-court. So if you're shooting jump shots, he had to dribble the length of the floor, pull up at the hash mark, take a jump shot, get the rebound and then, full speed, go back the other way. And he did that, he was doing it for 45 minutes to an hour and he did it at full speed."