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. Well the real issue is the relative difference between the defensive abilities of the players in question compared to the relative difference in their offensive abilities. Theriot may/may not be the better offensive player this season. Izturis is by far the superior defensive SS. I'll take Izturis at SS this season, but if Theriot shows solid offensive ability with regular ABs at the ML level, I wouldn't be adverse to playing him everyday at SS. But until then, I'd like to have only one question mark at SS - a question mark at offense and a given at defense, rather than question marks at defense and offense.