The Steelers made a classic mistake, thinking they could just throw those black and gold uniforms out on the field and San Diego would roll over and give up.
Particularly discouraging was that the defense was playing OK football for much of the first half - not great, not bad - but the offense was generating nothing.
It didn't work.
After a third consecutive three-and-out in the second quarter, Philip Rivers finally found Danario Alexander working against Curtis Brown on a double move. Brown bit and Alexander walked in for a touchdown.
Both runners, who appeared to set up deeper in the backfield than usual - Redman was lined up on the north bank of the Allegheny - failed to convert, giving the Chargers a freebie field goal.
The Steelers came back and got a field goal of their own to end the half at 13-3, but as if to show that this was going to be a blame everyone kind of day, the defense allowed a nearly 10-minute touchdown drive to open the second half.
* Brown was pulled in favor of Josh Victorian in the third quarter, but he wasn't alone in his struggles.
I know, Wallace has had some issues this season and he didn't help by saying that he loses focus at times, but Brown has had some drops as well as a key fumble in Oakland.
Just saying. Boo one, boo them all for a crappy performance.
* I can see why teams that play against Philip Rivers a lot hate the guy.
Rivers talks a lot of trash on the field.
Then again, Rivers had some things to talk about Sunday. But is it really necessary to tell Curtis Brown that he shouldn't have bit on the double move - as Rivers did after throwing a touchdown pass to Danario Alexander. Brown knows it.
To their credit, several Steelers let Rivers know that wasn't OK. Too bad they didn't take it out on him on the field.
* This Steelers team has talent. But right now, I'm questioning some heart issues.
The most puzzling thing is that they show a lot of it at times. But other times, they show very little.
It was almost as if everyone kind of breathed a sigh of relief that Roethlisberger was back and forgot they still had a game to play.