Well, I have reviewed some of Brett's batting practice/minor league videos online. Of course, all of the video is crap and none of it provides the best angle. I'm going to use Bryce Harper as a point of reference since they have similar body types, hit left-handed and have similar swings. Mechanically, there are 3 flaws that are pretty obvious. 2 of them are related to one another. The 2 that are related are the leg kick and the head. He has an exaggerated leg kick as part of his load (please, keep the jokes to a minimum). He brings his leg up and back, very similar to Bryce Harper (a swing we have seen a kajillion times). The difference is that Bryce keeps his head still and keeps his weight back. I still think Harper's exaggerated leg kick and the fact that he gets his foot down late has slightly retarted what has been an otherwise amazing start to his career. Anyway, back to Jackson. His weight shifts forward quickly when he puts his foot down (he puts it down late I might add), thus moving his head. So, when the pitcher prepares to release the ball, he rocks back, lifts his leg, rocks forward and puts his leg down. He also puts his leg down further out from where it started, thus lowering his head as well. Hitting a MLB pitch is hard enough, but it's even harder when the things (eyes) tracking the 95 mph moving target are moving as well. I think these things are related. If he can reduce his leg kick to a soft kick, where he essentially picks it up slightly off the ground and puts it down in the same location and turns his body instead of rocking back, it would help him tremendously. Those things can be corrected easily with plenty of tee time. The other issue, which is probably the biggest concern, is the hand movement/location. It's atrocious. I can't understand how he's been able to get this far. During the load process, he drops his hands to just above his waist/below his numbers. He also tilts the bat head slightly towards the pitcher. All of this is happening as the pitcher releases the ball. He then has to correct the angle of his hands so that he can drag the bat through the zone. If he gets a fastball up in the zone, he'll be lucky to hit it. He might literally have to swing UP at a ball high in the zone to hit it. If he is able to hit these pitches at all, then it means he is committed to hitting the fastball up and will most likely struggle with anything off-speed. It's harder to stop a swing than it is to start one. Going back to Bryce Harper, you'll notice that he starts his hands up and keeps them there. He never drops them below his shoulders. By doing this, he always ensures that gravity will help him with his swing. It's so much easier, and quicker, to start you swing momentum down than it is to start out on the same plane as the ball, where you are relying entirely on your own strength to generate momentum. This is harder to fix, but it can be fixed. During the load, he simply needs to push his hands back slightly. He almost needs to push them in the opposite direction of his front foot, and then start the swing from there. The other way to "fix" these things is for Brett to get extraordinarily stronger so that his strength can make up for the mechancial flaws. It's really quite amazing that a prospect can get through so many levels of a professional baseball organization with such elementary mechanical flaws. Really interesting stuff. Please post more often.