I think that since it is the Dynamic Player Performance these change throughout the game. So if a player is getting rushed a lot, they become paranoid or trigger happy depending on how they react. I think if you used Vick and he sat in the pocket, didn't scramble, and waited for his routes, he'd become calm or whatever the title is for that style.
Same with Orlando Scandric, if he gets burned a few times he wont be balanced he'll have a lower composure or if he locks someone down it'll be better. I hope they tell us all of these titles for the "D.P.P"