[Bl00dyBizkitz]

Found this YouTube channel about a year ago, former NFL O-Lineman breaking down some of the protections and stuff in the trenches my peanut brain doesn't fully understand. This has been a great watch so far.

Some highlights so far
3:45 Chris Jones gets pretty close, and Josh makes a horrible decision that he should've paid for.
7:38 Justin Reid gets a free rush on Josh, confusion in protection by the Bills after they go to an empty backfield.
11:09 Chiefs D-Line wins the rep so hard. Total chaos in the backfield.
15:02 3rd & 10 at the end of the game, we zero blitz, Josh makes the perfect read, Karlaftis saves this from being 30+ yards or a TD. Amari Cooper loses his footing on the catch and loses his ability to make a good first step and ultimately loses his ability to break this for a ton of yards.
17:40 4th & 5 end of the game. Pretty interesting stuff. 4 receivers to the left vs 3 DBs, the right side of the field is totally overloaded. Conventional wisdom I guess would say to slide protection to the right where you have numbers, and you should be fine. But as we've heard from the Bills O-Lineman, they truly felt like the pressure would come from the left because Spags had been sending pressure opposite from where it looks like it would be coming from all game long. Josh isn't even looking to the right after the ball is snapped, he's completely fooled.
EDIT: After rewatching it a 3rd time, Chris Jones is on that left side. Was that the big reason they slid protection left, to prevent CJ from being able to make the game winning play? Who knows.