Jason Kidd

Kidd entered the NBA as a poor outside shooter and finished as a spot-up three-point threat, making far more threes in his late thirties than in his prime. That change let him play alongside Dirk Nowitzki and Jason Terry on Dallas's 2011 champions as a 38-year-old starter who still ran the offence and guarded wings. He is the clearest case of a point guard adding a skill to survive.