With all being said, I see this competition as being a good thing. I'm not sure if Allen is ready but I'm the first to admit that I think the kid is going to be the real deal eventually .. if not this year, next. That picture of him tackling Gronkowski doesn't do it justice. Yes, it was very impressive that a CB could knock Gronk off his feet like that... but what was more impressive is that tackle caused the Pats to be 1 yard short of a first down causing them to punt.
Brown was a monster on ST without a doubt. Historically, that is like the #1 sign of becoming a really good defensive player for the Steelers.