It's a bit ridiculous to wonder about Annacone's influence when the two have only just started working together. Roger has implemented Annacone's strategy to pretty good success, but when he's unable to do so, he goes back to what he knows. Old habits die hard. Give it a few months into next season before judging whether Annacone has really changed Fed's game for the better.
You make some interesting points but by the way its not ridicolous to wonder about Annacone's influence after they've actually worked together for 3 months now including a Grand Slam tournament.
I know a lot here on MTF have no manners but have a bit of decorum for a change.