John Lynch on Thursday confirmed that new 49er Earl Mitchell will play nose-tackle in the 49ers defense but that roles for former first-round picks Arik Armstead and DeForest Buckner still are being worked out.
One of them is likely to play the so-called 'three technique,' the defensive lineman who lines up between the opposing guard and tackle. In the 49ers' new scheme, that position usually goes to the team's best pass-rushing interior lineman.
"We're still talking about that with our coordinators, with our defensive staff," Lynch said. "Because we think that each can do it, and I think they will at times.