What's OPS?

I ran across this nugget of wisdom from Phil Rogers on ESPN.com today:

"The Yankees haven't had a real instigator at the top of their lineup in years. Damon can make a difference, especially in October."

Now I expect this sort of unsubstantiated crap from Lupica, but not from a writer on the ESPN.com baseball site. Please people, look at the numbers before you start typing on your computers. Of course he does use the term "instigator". I'm not exactly sure what he means by that, but as I stated in a previous article, perhaps he also means "not as good as Derek Jeter".