Combine numbers don't mean very much.
They mean a lot. People get drafted on their potential. Don't decieve yourself. These numbers can make you rise or fall in the draft. But they are very important and not just in the NBA. Guys in the NFL are selected on their 40 time. If they were not important why does every GM go there?
I said they are not the end all. just being a great athlete does nothing if you don't couple it with an aggressive nature to attack the hole like Blake G.
Shooting is easier to improve on than athletic ability to a large extent you either have it or you do not. You can make minute changes to your muscle fibers whether fast twitch or slow but nothing like you can bulking up or improving your skills. You can't teach athletic ability. It can be improved some with training but if the base is not there, then you are not going to possess it.