The Bills have played pretty poorly in about half their games this season. KC game was an outlier…not to say they can’t turn it around, but if you think it’s all good, then you’re just kidding yourself.
To me, the most obvious difference is that (other than QB sneaks) Josh Allen designed runs have been removed from the playbook. Defenses no longer have to account for him as a runner and that’s taken away a huge advantage…there may be good reasons for this, and maybe it returns in the playoffs (if any), but it’s a pretty stark difference from years past.