Again.
People are using stat's / graphs to justify how good a player is and it simply isn't like that in the real world. Do you even go to see United play these days?
Scholes is class has been there for years. His is a football inteligance that tell's you when to pass out wide or through the middle instead of playing the 5 yard pass.
His is the work rate and effort that means running hell for leather and making a challenge to make up for a mistake. Yeah sometimes he goes in late and we all close our eye's and go 'oh god not again' but that drive and commitment is something we've not seen from Carrick for TWO YEARS.
Carrick doesn't work hard enough defensively these days, his work rate is poor and makes no effort to get forward on the counter attack, which is the football that has made us feared and famous.
My point is. Scholes doesn't need to pass into the box to create chances because he has a brilliant footballing brain that tell's him to play a inch perfect long pass out wide or to the running man in the middle that will set up a goal. While Carrick will ALWAYS opt for the safe 5 yard pass. He's a passenger. Nothing more.
We criticise Arsenal for always going on about 'oh we dominated possession'. In football it doesn't work that way. Team that dominate possession don't always win. Team that play that risky pass through the middle or out wide to create the chance are the ones that generally put teams a head, because let's face it, With or Without possession if you're not creating chances you won't win the game.
Carrick does not win games nor create chances. He's a passenger.
In a 5 man midfield we can afford him. In a two man? He's a waste of space.
I'll agree on one thing: Carrick doesn't quite look up to his former work rate, particularly in terms of sprinting. He does look a tad more sluggish, although he has never given the impression of an angry wasp, to put it mildly.
What I'll put forward is that Carrick does bring a lot of exactly the things you credit Scholes for: The right pass at the right time into the right space. Whereas Fletcher, Nani, Park and Vidic repeated plays comrades into difficult positions, holds the ball at the wrong time, starts the attack at the wrong side of the field, Carrick nine times out of ten - against spurs - played the optimal pass in order to make the United play flow better. Including quite a few very promising up-field passes. Even though he is not in full tilt physically as it seems, I think Uniteds play is more assured, more sound, when he is in the team. What was lacking against spurs was mostly the interplay in attack. Fletch was sloppy, Nani in and out, Chicharito willing but hit and miss, Berbatov dire. Park by far the best, but even then he can't provide the attacking interplay that Ronaldo, Rooney, at times Tevez, at times Berbatov and at times Giggsy have the last few years.
Carrick is not a playmaker of the Zidane mould (Oh, really?), but he can make great players look like Zidane (or more like it, ROnaldo). A dire Berbatov will still look a bit dire, mind you.