Paul Pierce and Kevin Garnett may have supplied the finishing kick last night, but the early pace-setting in the 110-107 overtime win against Utah was created by the Celtics backcourt. Avery Bradley and Courtney Lee pressured the Jazz backcourt from the start. Bradley scored 10 of his 18 points in the first quarter, and both players combined for 12 points in a 17-2 third-quarter run. The Celtics continue to be at their best defensively with this combination on the floor together. “Avery has had a great five games,” said coach Doc Rivers. “To start the game he gave us life with his scoring. His defense was such a big factor, it took them so long to get into their sets. They were killing us at the beginning of the game on the post. So we just said we were going to deny every catch, pressure the ball, and see how long it takes them to get to the post. It really helped us, because it took so much clock off.