Every time Rajon Rondo clangs another free throw, Cob Carlson cringes.
The Celtics’ two-time All-Star was shooting just 59.3 percent from the line this season entering last night’s game, last among point guards in the NBA.
“It drives me nuts how many good players making millions of dollars can’t make a very simple and easy shot,’’ said Carlson, a free throw specialist who has helped Davidson College become the nation’s top-shooting team at the line at 80.9 percent.
Free throw shooting has not improved in the last 50 years. College players shoot about 69 percent; NBA players 75 percent.
“That’s what propelled me to do this,’’ said Carlson. “I was blown away by the fact that there’s been no improvement. Why is there all this improvement in all these other sports, like swimming and track and field, and no improvement in foul shooting?’’
