Position of field umpire

[Nall23]

Help with this would be greatly appreciated-

I'm a 20 year old pony league baseball coach and I had a question that I am hoping someone can answer. We have a 2 umpire crew during our games. Last game the field umpire repeatedly lined up about half way between the second base and pitchers mound, and about seven-ten feet to the left of second base. This became a problem because 1) my players were complaining that they couldn't get comforable in their leads because he was obstructing their view of the pitcher and 2) when we had timed pick off plays at second with the shortstop, the shortstop could not see the pitcher the whole time as he was running over to cover the bag and had a much more difficult time tracking the moving baseball. I made the umpire aware of the situation, and he said that in his 20 years of umpiring no coach had ever complained. He did not do anything different. Is there an exact spot that the umpire is supposed to stand in a two man crew so he doesn't obstruct the views of my fielders/runners? Thank you