Based on what? He's gotten older (turns 32 this season) and it's been 4 seasons since he played shortstop. He doesn't look as mobile as he did when he was with the Rangers (but hey, he'd still be a better defensive SS than Jeter). If, as Bob said, he could prove me wrong, I'd love a Z-for-ARod trade. Wouldn't his offensive production make up for the drop off in his defense though? A-Rod is the best SS on the Yankees, they're just too stupid to play him at the right position