People, watch a Yankees game or two before you make accusations. When Giambi was off earlier this year, his swing was awful and he was showing no confidence. He hadn't really been playing for the most part of a year after all. He was on the bench for 10 games in May. June he started lifting his batting average. FYI, his OBP has been about .400 or better all year, even when he was batting .220 or whatever in May. Anyone who has watched the games has seen a transformation in his swing. He's no longer bailing out on his swing. Earlier this year, Mattingly was trying to get him to spread the ball to all fields. That experiment was a disaster and Mattingly has encouraged Giambi to go back to the strength of his swing...a straight out pull hitter. Since then, his balance has been MUCH better and he's started putting it together. FYI, he only has 11 doubles this year. His power isn't completely where it was. Most of his homers have been cheap Yankee Stadium HR's kind of like Tino's 10 HR streak. Anyone think Tino is juiced because he was a lefty with a hot streak in Yankee Stadium? I didn't think so.
As for the guy who asked if he's bigger, I haven't noticed a huge diference overall, but I will say his forearms are looking bigger for whatever that is worth.