If he maintains this level of performance for an extended period, while showing improved discipline/approach, then I'll buy it as more than just a hot streak. His development reminds me a bit of Marwin Gonzalez - toolsy, talented athletic kids who needed time to develop some offense. Talent wise, he might be the most talented shortstop, in terms of defense, in the system. There's a decent case for it (although to be fair, he's a work in progress defensively ... the errors have been piling up like crap this year). Okay, so we're on the same page. He's got to keep this up for another couple months with improved discipline and we can put him into the possible breakout list. I think he can regress a little with the SLG and the stolen bases and still be a candidate for a breakout prospect. I'm always looking for that guy. McNutt, Whitenack, and...who will it be this year? That's the most intriguing part about player development for me. The guy who most people don't see coming. BTW, after tonight, Alcantara's OPS is .799 and he's stolen 8 bases without being caught. His SLG could collapse and as long as he's showing improved discipline/approach, I'd be fine with whatever season he had. Right now, I still say the only real "breakout" on this season has been Rubi Silva (and that's a pretty fringy breakout, partly because he was always thought to have the tools to do well offensively). That said, as I was discussing on Sickels site with someone, the system hasn't had many breakouts ... but it also hasn't had many big disappointments. I'd be fine/pleased with that, too. But if his SLG fell all the way back to what it was last year (.352), it would be difficult to consider him a breakout of any kind. And I agree, there hasn't been a Cub breakout prospect clearly defined as of yet. A combination of it still being early May and no one really stepping up yet. But I can't see how Silva would be considered a breakout based his performance, even if he wasn't thought to have the tools to do well. I consider Alcantara's numbers to be better on their own. When you throw in the fact that he's two years younger than Silva and doing it at the same level, Alcantara's year to date is much more impressive. Maybe Nelson Perez is a breakout, but he's way too old for the league he's doing it in. His improvement in IsoD is completely out of the blue.