umpire on pass routes

[Robert Goodman]

In a coaching forum, I asked whether they ever deliberately used the umpire as a pick on pass routes. Some thought my Q was silly, but another said he did indeed take the U's position into account. (Then I followed up with a question about play faking to freeze the U, but didn't expect a serious response.)

If you as umpire suspect a team is deliberately using you to rub off coverage, do you try to do anything about it?

Robert