Curious to explore an oddity in the rivalry between Duke and UNC, fans occasionally approach the Plumlee and Zeller families and ask why they're sitting together. Cody Zeller and Marshall Plumlee are highly regarded rising senior recruits and Indiana Elite teammates. But their brothers are on opposite sides of college basketball's biggest rivalry. Tyler Zeller is expected to start at center for UNC next season. Miles and Mason Plumlee will be frontcourt mainstays as Duke tries to defend its NCAA title.