That is not true. Emerson was Lamp preferred lb in the beginning of the season, the problem with Emerson he is just bad. It is ok to have weakness if you are good at other area. Emerson is quite fast but nor super fast, and he is ok dribbler. That is it. That is his strength.
Offensively he doesn't offer much, not really a good passer,or crosser, not tall, defensively one on one he is just ok, positioning he is atrocious.