There’s plenty of curiosity surrounding exactly how the Buffalo Bills’ new defense will look under first-year defensive coordinator Jim Leonhard. Still, a recent discussion involving a Bills defensive lineman took fans behind the curtain. While speaking with Eric Wood on the  Centered on Buffalo  podcast, second-year defensive tackle Deone Walker shared an inside look at how Leonhard has begun to put his stamp on the Buffalo defense. “It’s been fun,” said Walker. “We are going slower. He wants us to learn the whole defense.” That includes understanding how things work beyond a player’s individual position, which Leonhard hopes will transform his group into a unit of knowledgeable, skilled players. “He wants us to learn what the corners are doing, when they’re doing it, how they’re doing it, what type of coverage we’re playing,” added Walker. “What we’re thinking on each type of play, each call.…