I don't know, GG. LeBeau had different horses. Gray doesn't really have that much to work with. The interior is soft.
He has nobody that can physically beat a blocker and get into the backfield. Which is why he blitzes incessantly. Which is why the corners play off, so they don't give up homeruns on every play. You play the odds that the other team has its own incompetents and draws penalties or stonehands a few balls and stalls the drive because most NFL teams aren't good enough these days to sustain a drive.
Now, Gray's adjustments (if any) failed horribly, too.
Of course, what if pulled back on the blitzes? Can the LBs cover anyone? I don't see Fletcher, Posey or Milloy doing anything against Gates. None of them have the required tools. One of the CBs was dinged and the FS as well.
Gray is no Belichick or Cronell, but I think this defense's talent is overrated.