ATLANTA — After exhibiting the poise of an 8-year-old after gulping down a 64-ounce Slurpee for the first three quarters Saturday night, the Celtics gathered themselves after another miserable stretch. They decided to play with a calmness and execution not seen since their four-game winning streak — which seemed like weeks ago.
Read it all, now.
Don't miss any of your favorite stories again. Read the stories that matter to you as much as you want, whenever you want when you subscribe to BostonGlobe.com.
Get full access today for just 99¢