This game was really useful in a handful of ways:
Obviously it shows you Bagent is just a guy. A guy who could be a very helpful back-up in the league which is valuable, especially if you have a running QB. He didn't look nearly as sharp as he did in Oakland, but he still has a great gameclock and typically feels the pressure really well and either gets the ball out or moves out of it. His decision making is still pretty impressive for a rookie, but his arm isn't there. It is what it is! That's a win for an UDFA.
Another big takeaway: You can't play 2005 Bears football in 2023. You simply can't - you have to have the ability to put up 30+ points on any given day. You might be able to beat a bunch of bad teams without QBs, but you can't even compete with a 2-4 Chargers team that has a legit QB and a legit offense. I'm not even that mad at the defense. They didn't play great, but IMO, they didn't even play that badly. And without any pass rush, I can't must anger about tackling or whatever else by the DBs. Whatever, it doesn't matter. If a good QB isn't being touched in the pocket, this is what he's gonna do. This is what the NFL is these days - they've been pushing it in this direction for a couple decades. You don't have to score 30+ every game, but you have to be able to have the ability to put it up in a given game.