Basically, up until the 4th quarter, the Chargers depleted offensive line provided time for the Chargers passing to work.
This is what I noticed, pre-4th quarter NE d-line tee-off time:
1) Hebert had time to scan the field, pick a target and throw
2) The Charger receivers however were well covered, some would say, blanketed like the world has never seen before, by the Patriot defenders.
3) The Charger receivers could not get much separation, if any at all, from their NE defenders.
4) Basically, there were not many opportunities for Herbert to successfully complete passes, because the Charger receivers just were not providing a viable target for successful completions.
5) Many times, when the receivers were blanketed AND Herbert had time, Herbert did not take the opportunity to run or scramble when opportunity presented itself. Instead he either chose to attempt incompletable passes and/or eff around in the pocket till he got hit or sacked. He just didn't take the initiative as he has in other games to cut and run. So I believe something was physically wrong with him.
6) I kept yelling "run for fuck sakes" when he hung, darted in and out and around the pocket looking for an open receiver who just never materialized throughout the whole fucken game. But no, he just threw with no chance in hell of a completion or fucked around too long and gained shot or worse was sacked even though the pass protection was fucken fine.
Btw - Herbert was sacked times, the majority of which came in the latter stages of the game - ie desperation mode/d-line tee-off time and hit while in the pocket 12 times. There really was no collapsing of the pocket until the latter part of the game.
The O-line did their job. The D did their job. The QB and the receivers did not.