The poor tackling is something I don't think any of us saw coming, and I'm sure it is driving Phil absolutely nuts. It's like a virus has infected the whole defense.
Even Jackson's tackling has been off. He traditionally has made up for his lack of size with good pop and leg power, but this season he's not as explosive, and is arm tackling more as opposed to driving through. Same with both of our starting safeties.
The current stable of corners has never really demonstrated great tackling, but we used to at least see them set the edge and turn players back to the middle. Now they just take bad angles and whiff.