Tthere are runners on, BU is in B or C. 1BC moves out of the coach's box to align himself with the pitcher to get a better look at a move to first.
My umpire friend will call time and move the coach back to at least one foot in the box. I don't see a problem with the coach's position.
I told him I would ask the experts on U-E.
My default is NFHS, but would be interested in hearing ant and all levels and opinions.