(1) Contractually he is obligated to play OF if the team says so
(2) WTF is it with people here defending a guy who won't help his team when he gets paid 10 Million per year.
Why would you side with this guy? He is selfish and greedy. Not to mention utterly overated.
He's a four time all star. How many times has Vidro been named an all star? Why on earth would an all star agree to switch positions, especially after he told the team trading for him that he absolutely would not play anything other than second base? It's analogous to Dallas having TO play tight end.
You don't follow baseball, do you? Vidro is an All-Star, too, and one who actually plays defense. Soriano is the worst second baseman in baseball, and it's not close. They showed a stat on ESPN this morning that in the last 4-5 years, Soriano has committed
more than twice as many errors over that time span than the next second baseman on the list. Soriano was over 100, next guy on the list was below 50. That he's made All-Star teams is a testament to the a)idiocy of fan voting, and b)over-emphasis of some offensive categories.
So the answer to your question "Why would Soriano move" is a) because he sucks at the position at which he's allegedly a professional, and b) he's on a team with a superior baseball player playing "his" position.