If we can't land Vidal, Khedira would be a decent consolation fallback option below Vidal. My only real hesitation is that Khedira looks like a poor man's Carrick to me. He's decent enough in his defensive duties, but nothing all that special, but he makes up for it with some neat work on the ball. But I'm sure a youtube video could cure me of this belief.
What we really need to do is face up to the fact that Ferguson was an absolute genius but is long gone now and we need top quality reinforcements. Even Wenger has broken the bank for two proven truly "world class" players -- Ozil and Sanchez. Unless we're broke -- which I'm assured we're not -- we have to face up to the fact that we have to spend to keep with with Arsenal, let alone City and Chelsea. And if we don't spend we'll have a hard time keeping up with Liverpool today and, eventually, Tottenham and Everton.
Where do we want to be? Competing with City, Chelsea or Arsenal or competing with Liverpool, Tottenham and Everton?