Mark Murphy writes for the Boston Herald as a Boston Celtics beat reporter. Twitter: @Murf56 7:45 Favorite Avery Bradley moment 13:15 Celts revamped roster 17:00 Kelly Olynyk signs w/ Miami Heat 24:15 Stevens’ impact on Gordon Hayward 32:00 Jayson Tatum impressions Available for download on iTunes and Stitcher on Sunday, July 9th. Celtics Beat is presented by Casper. Learn more about your ad choices. Visit megaphone.fm/adchoices