There’s a well-documented story about how Miami Heat coach Erik Spoelstra in 2015 made Josh Richardson make 70 of 100 3-pointers during a voluntary practice session. Richardson was a rookie, selected 40th overall, and to that point had been struggling to find a role in Miami’s rotation.
Then one afternoon on a “get-what-you-need” day in which players can use the facility for extra practice, weight lifting or body work on a voluntary basis, Richardson was going through a shooting drill when Spoelstra walked in to observe. Not much later, Spoelstra started demanding more of Richardson. More shots, more intensity, more attention to detail.