The standard nine, at the depths they actually play

Standard fielding alignment, a baseball defence drawn in Playmaker: 9 of our players on the pitch. — Pitcher — 1 of 9

Baseball · Defence · 9 of your players

Nobody on, nothing to protect, and every other alignment in this library measured from here. Middle infielders at 150 ft, corners in front of their bags, outfield at 285 to 300 ft.

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The nine, and the distances between them

With nobody on base there is nothing to defend against, which is exactly what makes this the drawing everything else is measured from. The pitcher is on the rubber at 60 ft 6 in and the catcher is in his box. First base plays about 103 ft out, ahead of and outside his bag; third base is about 110 ft, a couple of steps off the line. The second baseman and the shortstop are the deep pair, roughly 150 ft either side of second, far enough back that a hard ground ball is still in front of them.

Behind them, left field and right field are at about 285 ft and centre field is at 300 ft. Centre plays deepest because he has the most ground behind him and the fence is 330 ft away. Those three numbers are the ones most teams get wrong at training, because an outfielder walking to his spot on an unmarked field will almost always stop short.

When this is the alignment you want

Nobody on, a hitter you have no reason to respect one way or the other, and no lead worth protecting. It is the resting state: the place all nine walk to without being told, so that every other alignment on this list is a call somebody makes out loud.

That is the useful part of drawing it. If your players cannot find these nine spots unprompted, then infield in, no-doubles and double-play depth are all being taught as absolute positions rather than as adjustments, and they will drift.

What to coach off it

Depth in feet, not in feelings. Stand your middle infielders where they think 150 ft is, then pace it. The gap between belief and the tape is the whole coaching point.
Every fielder knows where home is. From the standard spot, ask each one where the ball goes on a single, on a double, and with two out. No movement drawn yet, just answers.
Make it your base layer. Copy this alignment, move the two or three players your team genuinely plays differently, and name it after your team.

Load it in the designer, drag your outfielders to where your arms and your fence really put them, and keep that version as the one you teach from.