JJ Redick had it good. After a prosperous 15-year career in the NBA, Redick had a cushy job as an ESPN anaylst. When he wasn’t on television, he was recording his wildly-successful podcast, “The Old Man and the Three.” Then, Redick traded in his comfy lifestyle for one of the most demanding positions in the basketball world. On June 24, the Los Angeles Lakers named Redick their next head coach. During an appearance at the Lakers’ 99-80 loss against the Houston Rockets at the Las Vegas Summer League on Friday, Redick revealed why he took the position. “Part of that is that I’m just a sicko and …