We don't know much about quarterbacks in Chicago; how could we if the best one we ever had played so long ago he wore a leather helmet?
We don't know much about receivers either; Brandon Marshall is like a Martian in the context of Chicago's football history.
But linebackers we know. Great linebackers we've watched in abundance. George, Butkus, Singletary, Urlacher. It's a linebacker's Mount Rushmore. Linebackers are to the Bears what centers are to the Lakers: Mikan, Wilt, Kareem, Shaq.