BKL Nightly Let's Talk Ball: How big is change to Jim Leonhard's 3-4 defense?

Jim Leonhard is now in charge of the Bills defense and brings an attacking 3-4 base. How big a change will that be? Bills Kickoff Live co-hosts Thad Brown and Carl Jones explain. Plus, they point out which current Bills will be helped most and which will be most hurt. And Carl lays out what the Bills are getting in a new cornerbacks coach that loves to press.