Help with mechanics

[NM FP Ump]

If I am PU, I call out, "I've got the lead, I've got the lead" as loud as I can and I now have the runner going from 2nd to 3rd and from 3rd to home. I move up the 3rd base line, about halfway to 3rd.

If I am BU and I hear my partner yell, "I've got the lead, I've got the lead", I point to 3rd on my way to my holding position (inside the baseline between 1st and 2nd, feet near the pitcher's circle) and follow the trail runners.

You do not have the throw to third, but, once you realize you don't have any action in your area, you need to find the ball. From where you should be positioned, you have a poor angle to call anything at 3rd.