Dunking a basketball is great; which is a big reason why we have a Slam Dunk competition during the NBA's All Star weekend. But, without a doubt, dunking is way more impressive when it's your associate head coach doing it. Apparently Alvin Gentry, associate head coach of the Golden State Warriors, decided to try his hand at dunking and it's still pretty insanely awesome and impressive as hell. Also, did I mention that Gentry has been coaching in the NBA since the 1980s? This man is a 60-year old legend and this dunk is so amazing that even the Warriors' players are left speechless.