In 2014-2015 he even had one of those dream "180 Shooting" seasons with two point percentage over fifty percent, three pointers over forty, and free throws above ninety.
Preparation, discussed here at Coaching Clipboard.
Here are a few excerpts:
You can summarize his program at 342 makes.
Every Sunday afternoon in the offseason is the same for J.J. Redick. The third-year Clipper shuttles across the perimeter at full speed, mandating himself to make 140 spot-up two-pointers and 140 spot-up three-pointers. Specifically, he must make 20 shots at seven different spots on the court, one after the other. Next, imagining a hand in his face, he must make 42 pull-up jumpers off the dribble: 21 to the right, 21 to the left. Draining 20 free throws, the drill stretches to 342 total makes.
Playing limited minutes as a rookie in 2006-07 and over the next few seasons, Redick devoted himself to improving his weaknesses. (Some viewed Redick as too slow and not athletic 'enough' for the NBA).
Redick committed to a strict summer plan that monitored each hour of the day on a spreadsheet: when he worked out, when he attended summer school, when he ate and when he slept. Practically living in the gym, he shed 20 pounds. (Darren Hardy, author of The Compound Effect emphasizes the improvement available from tracking.)
As Celtics coach Brad Stevens would say, "The magic is in the work."