I wonder if it's possible that he compensated in some way for the knee while coming back from it and developed a hole in his mechanics that they're still trying to unwind. It can be a vicious cycle - mechanics fall apart, starts pressing trying to fix them, mechanics become even worse, confidence goes down, now everything has fallen apart. Or he's struggled to translate the mechanical fixes to NFL game speed, so it looks fixed in practice but falls apart under the lights. I dunno, something must've happened. It seems like a footwork issue from what I've read and heard. It's hard for me to believe they all could whiff so hard on something like that