Originally Posted by infantrycak
The roof has a marginal effect. The excitement of the crowd has a far greater one. JMO.
That's how I feel about it. The stadium in Seattle is open air and is one of the loudest in the NFL. Sitting in the bull pen you can tell before anyone even scores what mood the crowd is in. It's almost like if the crowd is confident then we win, if the crowd feels like we are going to lose that feeling spreads throughout the stadium and consequently we win.