Since Baez isn't going to walk, he should jump on that first pitch fastball down the middle they keep throwing him. Or learn that they're not going to throw a strike from there until he does take a walk.
He swings so hard at times that he can't even keep his eyes on the ball and is nowhere close to making contact. He's got to shorten up with 2 strikes or find some happy medium if he wants sustained success. All part of adjustments he will have to make. At least he's up here and can learn through experience.