Right. Play calling calculations are dependent on personnel

Any coach who ignores who it is he's asking to do things and when it is he's asking them to do it in favor of some blanket theory about when you throw or run isn't going to be employed long.

When you have Big Ben or Brady or Rodgers or Ryan, you put the ball in their hands to win games for you. When you have Case Keenum, you try to avoid him losing it for you.