I would say both to a limited extent. We have been misaligned, over running, slow reacting, thinking to much, hesitating, etc. In short, just not playing very smart, not playing confidently, and really - as Mickey put it - being the hunted instead of the hunter.
I don’t know about the PFF #s. But we did seem to make a dozen or so tackles where previously they would have let the guy slip away. I like gang tackling (assisted tackles in the stats I guess). That’s when defenses go from average to good. There seemed to be more than usual but in numbers terms, idk how much.
The defense played much harder. More relentless. Indiana had a couple TD drives that hurt us but there were a couple key plays that enabled them to finish. Our defense wasn’t bad - Indy made exceptional plays. We gave up just 14 points defensively. We will win a lot of games at that level.