Interceptions and Counter-Momentum

Over at the Community Site, contributor Andy Steiner has a very intriguing post. I normally link to the community posts in my weekly roundup, but this one was so interesting it merited some extra attention. Andy looks at whether teams tend to score more points following an interception than when they get the ball by other means.

I'd like to know what everyone thinks. I've been meaning to do a grand study of momentum, but haven't set aside the time to do it justice. Any suggestions on how to structure further research, using EP or WP perhaps, are appreciated.

Thanks, Andy.