I'm thinking that Davis is experiencing his 'sophomore slump' somewhat early in the process, as in almost a year early.
He had some rave reviews early on, and then he began believing his press. Nothing wrong with that, but then in response to the 'rave reviews' he began trying to do too much. Result? Increased interceptions and more sacks.
BUT we have to consider what he has been playing with the last couple of weeks: he has lost his FAVORITE receiver, in Quick; for some reason, Zac Stacey is in the doghouse (after his 2 KC carries of (I think) 7 and 9 yards; AND the O-line has been decimated.
Let us consider that O-line for a moment, if you will. He has a rookie Left Tackle who is just learning the art of pass protection (do you think THAT gave Davis a load of confidence today?), he has Davin 'Revolving Door' Joseph, Scott 'ooh, I made a bad snap' Wells at center (who also has been less than healthy), Saffold (ooh, I hurt my shoulder again), and Barksdale who, as I recall, was beat like a rented mule in KC. So, do you REALLY think Davis was feeling fairly confident about the level of protection that he would be receiving today?? At least Zac Stacy was good at blitz pickup, although it did sound like Tre Mason was doing better today, as well.
And why didn't they get Benny Cunningham more involved? I think that switching between him and Mason or putting both in the backfield might have really screwed with the Whiners' heads.
As it is we won the last 2 of 3 games with Davis who, I admit, isn't winning the games on his own but then he isn't losing them all by himself, either.
I think that right now the game is probably still too fast for him. One of these days it will slow down for him and he will gain some confidence in other receivers and he will stop trying to force passes and, hope of all hope, he will begin to SEE open receivers. If all those things happen he may still be the ONE!