When we were pressuring Ben in the first half, the secondary was close enough to the guys they were covering to stop the pass. when we get no pressure at all on the QB (i.e. the entire second half), then our secondary gets picked apart.
Oh, and when the offense goes 3 and out every freakin drive, then our defense stops working particularly well.
IMO our secondary is just fine as long as the offense is doing its job. Champ may not be what he used to be, Goodman may be only okay, etc. etc. but they are not the reason we lost the past two games, and they are good enough to take into the playoffs if there was at least some production from the offense.