Who Drives?

[thisOrrthat]

I know this question comes up year after year, game after game but I want to ask it again because I think this year's game has a lot more of a risk then games in the past. My question is "how do you choose the driver?"
I have been thinking about this because several teams are getting to the point where students start driving their robot to get used to it, then teams may have driver try outs. They pick the best one there is and go from there. But after thinking of it for a while I came up with a list of how I think drivers should be chosen. Instead of basing it on skill, I think drivers should be picked based on 5 categories, Character, knowledge of the rules, knowledge of there robot, ability to handle stress, and communication skills.
I am wanting to know your guys opinions on driver selection. If it should be on a try out system or more if an evaluation of a individual. Sorry if there was already a thread on this but I think the 60inch risk factor this year will make choosing a driver a lot harder then it has in the past.