I agree, but it will be difficult for Allegri to control him, when his father-figure Mancini failed.
I don't think Juve didn't sign Cassano or Balotelli because Marotta signs players on his own terms, but because of their attitudes. I wanted Cassano in 2010 when Milan signed him, but hindsight it was a good thing we didn't sign him.
You could say Anelka has a bad attitude, but I don't think he'll be here more than 6 months.