Adam Everett is widely regarded as an amazing defensive SS. He got 688 chances last year in just under 1300 innings, about 4.7 chances per 9 innings. Or in other words, a little more than the number of plate appearances he'll receive. Now, consider that a very substantial number of those defensive chances are plays that anyone who's played high school baseball can and will make(pop-ups, sunday hops, easy force out throws, etc.), never mind a major league caliber defender. The sheer amount of chances that a defender gets to add value aren't near the amount of chances he gets at the plate. And even then, that ignores that defense is a 9 man affair, where you can bobble a ball and still flip to the guy at second for a forceout, or lose a ball in the lights/sun but the center fielder/second baseman comes in and grabs it. Offense has more of an impact than defense. yeah, but isn't the difference between two lousy hitters (Cedeno and Izturis) only about 1 time on base per week, at best? I was talking mostly theoretically, in my original post I said it remains to be seen which would be the better option between Izturis and Theriot.