Experimentation is what I am leaning towards as well. We have several new players, including rookies, on this team. Perhaps Babich and McD are trying different things especially against inferior opponents like the Jets and Dolphins. Especially knowing that errors will be covered up by our superlative O.
Barring injuries, I am expecting a stifling defense in the second half of the season against tough opponents. They may still continue to protect players against inferior opponents to save them for the playoffs. I agree that we are just building for the playoffs