I have a different take .......I agree not so much OFF the field but good field general. He's a C-type but without him, I'm not sure Dez plays as long as he did. He knew Dez's weaknesses as a route runner. I'm pretty sure he changed lots of plays from the sideline which put Dez at a disadvantage. This is why Dez struggled once Dak began as the starter.........running the correct route were critical.
Romo to a T
Yes, there is a Type C personality, which is characterized by traits like being analytical, detail-oriented, and conflict-avoidant. People with a Type C personality may also be quiet, introverted, and have trouble expressing their emotions.