re: Derek Barnett's 2nd sack last night: Should he have been flagged?

I thought so when it happened but after watching it several times there's really not much to it. The refs had chosen a 'let 'em play attitude' all game long so that likely factored into it as well.

I wouldn't have been surprised at all if it had been called though. A lot of times things like this that look bad visually but aren't actually all that rough get called while far worse things contact wise that don't look as bad aren't called.