Play. Maybe get a few friends to ask questions on builds/general strategy questions. They won't always have an answer that is applicable to your skill level, but in general their answers should be pretty accurate.
They were in a position to win that game in spite of Dalton. Offense was outscored by the defense 7 to 6 and Green-Ellis actually looked like an above average NFL running back (for a day).
If he was on the Pats, Brady would throw to him like 30% of the time, mostly deep, like he did with Moss. I bet he would gain at least 15,000 yards in a single season.