Ok, it looks like the last poster is right. I will have to explain myself again. Because not one person can name me a shortstop who projects to be a GG caliber defender who can hit for power, who projects to carry a .high .300's OBP(.380/.390) while hitting .300 as well as stealing bases. I asked several times when was the last time a SS like that came up an I got Castro who does NOT draw walks and who is most certainly NOT a GG caliber defender at SS and has major questions about him being able to stay at SS. And you're asking ME about why I think he is a once in a generation type player. Don't then attribute other players labels as once in a generation type player label to ME? I never said those guys were "once in a generation." I never said either way, though Harper is. But does it make you feel better to know that he's now the #2 prospect in all the minors behind ONLY Dylan Bundy? And I'm sick of rattling off how impressive a debut he has to push Profar to #2, so if you don't know, look him up. Still though, I've had several people call me out on that comment and yet have been unable to find one single player to compare him to in the last decade or so. Troy Tulowitzki is pretty good. You might have heard of him?