2000+ yard rushers are indeed rare, but we've seen it before and we will see it again. It's actually happened 4x since 1997. You need the right blend of ingredients to nail 2000+ and perhaps break the single season rushing record - a durable back, a run first offense, and a head coach who is probably very conservative (on offense). It's been a passing league for quite some time and owners/fans want excitement, not a chance to break some 20+ year old rushing stat.
Of course we are going to see picks have a marked impact on their respective teams. You can very easily add Peterson to the discussion - maybe even award him Offensive Player of the Year. Clearly he is very valuable and if he wasn't the center piece of the offense the Vikings would probably have won 7 games or something. Considering his injury and lack of other weapons on offense (defenses just loading up the box down after down) he still busts off huge runs over and over.
Still, I stand by earlier statement. Luck and Griffin (Wilson too for that matter) simply make everyone around them better. They've elevated their respective offenses to levels that no one anticipated. If I had to choose one, I'd probably give it to Luck.
