Many here have been critical of the quality of play so far this season.
I don't agree with those who only think high scoring games are worth watching. Personally I prefer watching a stout defence to watching a high powered offence. That's just me, and I concede that I am in the minority on that.
However, I do agree that the quality of the games, from an entertainment aspect, have been relatively poor this season compared to seasons' past. From the high number of penalties (and that's not the fault of the officials in the vast majority of cases; it's just that players are committing more penalties this season), to fumbles, interceptions, poor line play, poor defensive coverages, poor offensive play calling, etc etc.
Why is that?
There are probably a myriad of reasons. But I think one of the more important reasons is expansion.
We have added a 9th team this year. The talent pool, from coaching staffs to import players and (especially) non-import players, has been significantly diluted. More so than I personally expected, frankly.
I do believe that this is a major cause of the increase in penalties and relatively poor play. Certain players who in seasons' past would have been special teamers only, or depth guys, or injury replacements, are now playing first string.
It may take a year or two to see things back up to the quality that we had become used to.
Should give pause to those who want to add a tenth team as soon as possible.