I dunno... Furcal and Andrus come to mind. Profar might have a little more power potential (sounds like he could end up as a 20 HR guy or so). For what it's worth, I haven't read anything that rates him as plus-plus defense. I'm not saying that's wrong but I haven't seen it. For what it's worth, here is a pre-season scouting report on him that assesses his tools on a 20-80 scale. http://baseballprospectnation.com/2012/02/03/scouting-report-jurickson-profar-ss/ By the way, even if Profar would "just" turn into a .360/.420 SS with good defense, I'd gladly trade Greinke for that (assuming we're sellers)