BP on: Dilson Herrera, Dominic Smith, Luis Guillorme, Gavin Cecchini

Dilson Herrera: At second base, Herrera showed solid actions but struggled with consistency even in a simple infield drill, dropping a few routine groundballs and feeds to second base. He was comfortable with his footwork around the base on double play turns.

In BP, Herrera showed above-average bat speed and decent pop for a shorter player, but again was inconsistent. This stemmed from wrapping the bat at the outset of his swing, causing his swing path to loop underneath the ball. Even in BP, he was getting too much of the bottom half of the ball and, simply put, hit far too many infield pop-ups and lazy fly balls than a player of his caliber should in practice.

Dominic Smith: Even when standing around listening to instructions, Smith stands out. Even among older college draftees, the 18-year-old Smith is physically developed, and when surrounded with fellow 18-year-olds, he looks like their chaperone on a class trip. This is both good and bad for Smith. It's an advantage now that gives him a leg up on low minor-league competition, but at six foot even, there's not a ton of projection left in his body. He's not physically imposing so much as he's just solidly built.

With the bat, everything Smith does is smooth. He has a fluid left-handed stroke that stems from a quiet set-up and stance. He may struggle at first with quality breaking stuff (when he eventually faces some) due to an elongated weight-transfer that is as much lunge as it is a stride, but it's a simple fix. He doesn't need as dramatic of a weight transfer to generate power.

Smith's power comes free and easy from the natural loft in his swing. He generates backspin without forcing it and the ball carries. Because he doesn't have to swing hard to generate power, he is able to control the bat within the strike zone.

Luis Guillorme: I didn't get to see Guillorme hit because he was on a different field than the Smith/Herrera/Rosario group I was fixated on, but watching him take groundballs in infield practice was enough to get me excited about seeing him again.

The actions at shortstop were as smooth as they come, and he had a real knack for fielding the ball on the easiest hop every time. His transfer and release were incredibly quick, both to first and second. Guillorme is a natural infielder who could probably excel at any position and has enough arm to do so if called upon.

Gavin Cecchini: Cecchini is currently out of position as a shortstop. This was painfully obvious watching him take groundballs in a group with Rosario and Guillorne, whose smooth actions made Cecchini look robotic by comparison. He has the athleticism and hand-eye coordination to get away with awkward actions and mechanical movements at the position in practice, but he doesn't look natural or comfortable. His hands are stiff and have no give, instead jabbing at the ball, especially on the backhand. Right now he's getting by with athleticism at the position and will need to greatly refine his movements to stay there.

At the plate, I liked Cecchini's short, line-drive swing. He doesn't generate much backspin, which will limit his power, but he controlled the bat well and should have decent doubles power in time. —Jeff Moore