You answered your own question, he doesn't hit for enough power, or last doesn't project to in MLB. He's not a guy you're going to dream on developing more power since he's 25 and has never hit more than 8 HRs in any season. He'd basically have to double that HR total to maintain his current .870 OPS since he's not going to carry a .400 OBP or AVE north of .300 at MLB. He might have some seasons where he eclipses 15 HRs, but I'd be shocked if he's perennially above that number. I don't recall being taken aback by any horrible flaws in his swing when he was in WI, but he wasn't there very long either, somewhere around 25-30 games at the end of the season. Basically, I only saw him play 1 or 2 times in person before the season was over and he moved up, not anywhere near enough to dissect his swing. Who knows though, all it takes is a little work in the weight room every off season and you go from the Brewer's version of Michael Brantley to Cleveland's version who peaked at 20 HRs. It's very difficult to judge how much work of that type baseball players are going to put in, it's not like the NFL or NBA where there's a culture of maximizing athletic potential, historically baseball hasn't had that approach though more and more teams are heading that direction now. In 49 games at AA between 2015 and 2016, he's hitting a cool .352/.429/.490. That's nothing to sneeze at even with the lack of HR. He does have 14 doubles and a triple this year, so he's not just a singles hitter. Besides, he's 6'6" 230, not exactly a little guy. Love too that he's very hard to strike out. He's certainly now on my radar and methinks, the Brewer brass' as well. I would suspect he'll get a promotion to AAA fairly soon and I wouldn't rule out a September call up especially if Carter is dealt at some point.