So this is why Doc Rivers  and his coaching staff were so happy to have two solid days of practice this week.
The Celtics held the Jazz to 37-of-79 shooting for 46.8 percent. But most impressively, they forced Utah, a team that prides itself on execution, to commit 21 turnovers.
Apparently the Celtics were listening when the coaches, starting with defensive guru Tom Thibodeau , preached about staying ready for the pick-and-roll and not letting Utah’s big men of Carlos Boozer and Mehmet Okur get easy baskets underneath.
Afterward, the Celtics were appreciative of their coaches’ preparation, as was head coach Doc Rivers.