http://www.bloggingtheboys.com/2014...-of-the-tape-defensive-tackles-dallas-cowboys This article has several metrics which I find interesting. We have seen the production ratio from a previous post i did with sacks and Tackles for loss. This one also has a few others.(explosion index, explosive power, and speed score. Interesting Donald and Hagemann are the two that ace them all, Not bad for a lazy DT.