The first problem most Celtics draft picks run into is trying to find a number for their jerseys. As Danny Ainge noted Monday, there aren’t a lot of digits left. Kelly Olynyk and Colton Iverson, the Celtics’ 2013 NBA draft picks, were officially introduced to the media and a group of local kids at a news conference that also served to unveil the newly renovated Mildred Avenue Teen Center in Mattapan, Mass. Olynyk, the 13th overall pick who was acquired in a trade with the Dallas Mavericks, held No. 41, while Iverson, the 53rd overall pick who as acquired in a cash transaction with the Indiana Pacers, held No. 37. Check out the newest Celtics in the photo below. Photo via Twitter/@BenjeeBallgame