These wins are not coming from one person playing awesome. This is not a QB being in the zone, these are not 4Ws from a happenstance collection of turnovers (like last year).
The D has not allowed a TD from 2 P4 teams.
The punt return was the only flukey thing and it totally was a flukey thing.
The fumble was tough D, the pics were QB pressured throws, out TDs were good plays where an excellent player pounded through multiple tackles, a dime was dropped, a good play was dialed up.