I love that Baez just seems to have that killer instinct and confidence that Vitters never had. Everyone also raves about how hard he hits the ball. If he keeps this up he may be ranked as one of the top prospects in baseball next year.
He will be. He was ranked No. 25 (No. 13 for positional players) on BA's midseason top 50 a couple weeks ago, and he's only been impressing scouts more since then. Goldstein said a couple days ago that scouts already view Baez as the top offensive player in the Midwest League, saying he's passed Miguel Sano (No. 22 on that BA list). Keep in mind some of the players ranked ahead of him on that list will move on to the bigs soon too.
His bat speed is off the charts and he's incredibly confident as you said; he carries himself with a swagger. Hell he's even 16 of 19 on stolen bases.
Casey Kopitzke (former Cubs minor league catcher & current Peoria manager) has done nothing but rave about him. Says how he drives the ball to all fields and is just unbelievably talented in most every way. There's really nothing he can't do. He's shaky right now at shortstop, but that's expected of a 19-year-old. Not to mention most everybody thinks he'll end up at third base down the road anyway, and be damn good there.
Dude just has that special look and I'm really freaking excited about his potential.