I've had a very tough time reading them. They put up strong games against the Chargers and Eagles, a good game against the Chiefs, a slightly below average game against the Texans (all big plays), and were poor against the Broncos, Giants, and Jets.
My sense is that they really were overmatched by the Broncos and Giants. But that in other games, their bad play is eventually a result of just being so demoralized by the play of the offense. I especially thought that was true against the Jets yesterday.
I'm not really sure about the defense and may not be the whole year, given that we won't have an offense that leads to competitive games in which we can really measure them.