They won at Denver, they dominated Baltimore, and swept the Dolphins.
Their D has progressed I doubt you have closely watched them.
Trey Flowers has developed into a really good pass rusher. Nikovich has gotten better.
Kyle Van Noy, Alandon Roberts, Shea McCleanin have stabilized the LB core.
Logan Ryan and Eagles bums Eric Rowe and Patrick Chung have been great in the secondary behind their #1 stud CB Malcolm Butler.
I was worried about the D. After 9 games they weren't getting turnovers. The team was -1 in turnover margin. The last 7 weeks the team was +12.
Alex Smith isn't coming into Foxboro and out playing Tom Brady.
Ben Rothlisberger could score on them but the Pitt D sucks against NE.
Brady has never lost at home to Pittsburgh.
New England makes the SB unless the team commits 3 turnovers in the AFC title game.