I think the idea makes sense from a certain point of view.When there is a turnover, until the ball is downed, it essentially puts all the offensive players on defense and all the defensive players on offense. While these are top athletes and they are paid enormous sums of money, they are not paid to excel in that situation. You do not pay LaDainian Tomlinson for his ability to tackle. You do not pay Ed Reed to run block. So, during a turnover runback, you are not seeing the clubs play at an NFL-level.Its a bit like watching a pitcher bat. A pitcher is not paid for his hitting ability. You are getting a substandard product.I think the drop in quality of play is offset by the excitement of the runback in the NFL. I've never understood what benefit you get from seeing a pitcher bat, however. It is not exactly exciting...