"I was obviously joking with Terry about the guard position. I had no idea I was on live, whatever it was," Ainge said. "I thought he was FaceTiming me. I had no idea. But, anyway, that is sort of funny. We're excited about Robert, and we felt like he was the best player available, and we think he's a great fit for our team."
Both Ainge and Celtics coach Brad Stevens revelled in the fact that Williams, a projected lottery pick, slipped to Boston late in the first round.
"[Williams] was a player that we liked coming into this draft process. He's a rim protector and rebounder, and a guy who can play above the rim on both ends of the court," Ainge said. "We don't have much of that. We have a little bit of that, but not what he can do. So his abilities to protect the rim and rebound and run the floor, and I think, are some of his greatest traits and uses."
http://www.espn.com/nba/story/_/id/23869163/boston-celtics-president-danny-ainge-unknowingly-revealed-first-round-selection-texas-big-man-robert-williams-face