One of the more promising developments for the Celtics this season is their improved efficiency on offense. The C’s are 8th in the NBA with a 51.2 eFG%, a massive improvement over their 48.8 eFG% last season (24th in NBA).
eFG% (effective field goal percentage): Measures field goal percentage adjusting for the fact that a 3-point field goal is worth one more point than a 2-point field goal. ((FGM + (0.5 * 3PM)) / FGA
One of the reasons for the jump in eFG% is their improvement on corner 3-point shots. The Celtics are making 47.3 percent of their corner 3s this season, which leads the NBA. Last season the Celtics hit just 34.4 percent from the corners, which ranked 27th. Corner 3s are one of the most efficient shots in basketball, since they’re the closest 3-point shot (22 feet, compared to 23 feet, 9 inches on above the break 3s).
Leading the turnaround is Avery Bradley, who has hit 14 of his team-high 27 corner 3s this season (51.9 percent). Bradley also led the Celtics in corner 3 attempts last season, but hit just 30.2 percent (39-of-129). All four of the Celtics who have attempted at least 10 corner 3s this season are making more than 47 percent: Bradley (14-of-27), Jae Crowder (6-of-12), Marcus Smart (5-of-10) and Isaiah Thomas (9-of-19).
It’s still early, but the Celtics' improvement from that area of the court is a positive trend worth monitoring with the season nearly a quarter of the way through.