Here is an observation by Eric Musselman the former NBA coach while watching Kobe Bryant during his game against the Warriors:
During Kobe's pre-game and halftime warm-ups, unlike a lot of guys, he isn't chatting or casually shooting. He's focused & taking game-speed jumpers. Its that kind of focus and preparation that separates him from the other elite players. Kobe takes advantage of every minute he is on the floor and it’s that tiny bit of extra focus that can make a big difference.
