I think TT deserves some criticism. He said so himself with regard to backup QB. But there are fissures all over the place. Including so called points of emphasis. Aaron Rodgers absence, great as he is, should not have DB's playing passes like Stevie Wonder. And defenders missing tackles like the opposing RB's and WR's have silicone on their jersey.
If you believe the Packers have great talent defensively than its the defensive coaches.