A-Rod has done this before 

April, 26, 2007
Alex Rodriguez -- in case you haven't already heard -- is off to one of the greatest starts ever, and Bronx Banter's Alex Belth has a handy rundown of the explanations. In the New York Times last week (subscriber-only), George Vecsey quotes Joe Torre: "His approach is so much softer. A year ago, you didn't see the fluidity."

I don't watch every Yankees game, nor have I spoken to Mr. Rodriguez this season (or for that matter, ever). I certainly would acknowledge the possibilities that he has made some technical adjustment, and that he does have a different attitude this spring, and that one or both of these changes have contributed to his amazing start.