.273/.327/.399/.726 is the average line for ALL shortstops, including backups, so those numbers are going to be down a bit from the average starting SS. Theriot is at .282/.349/.370/.719 So yes his OBP is probably a little above average for a starting SS, but his power is definitely lower. All in all, he's not a terrible option with the numbers he's put up this year. Power is very over rated, especially for a number 2 hitter. Power is pretty much never overrated. what it all comes down to is runs scored, not homeruns. True. Runs and outs are the two most important factors in any baseball game. And the way to score more runs is to make fewer outs, hence on-base percentage's value (or out percentage if you flip the number) both as a metric and as an intrinsic part of the game. Unfortunately, without a lot of power, a player's OBP can only get so high -- HR power vastly increases OBP potential because the luck element of BABIP is completely removed on those hits. Furthermore, more power tends to equal more runs -- not as well as OBP, but certainly highly correlative. To put it differently, if you could have two SS's, one who posts a .350/.350 OBP/SLG and one who posts a .350/.400 OBP/SLG, you would choose the latter one, yes? What about a .335/.400 one?