Yeah.... No. Good comedy, though. As I pointed out already, they were 5th once Browner entered the lineup, yet you're harping on "7th!". That's just one example of why your analysis sucks.
If you can't accept why it's significant to use Browner's return as the starting point, you're either trolling or just clueless about what was happening in the team's secondary. That's not looking at DL/LB issues (i.e. Mayo going down soon after Browner's return). That's strictly using Browner's return.
McCourty played in all 16 games. A defense is always going have players in and out. That is the nature of the football. You can't excuse Browner's absence for the Pats without realizing that other teams lost players along the way as well. The Pats were fortunate this season defensively in that they got stronger as the season went along rather than weaker. Your argument seems to be more for the value of Browner anyways, we're talking McCourty here.