[bigwhistle]

You are correct Mark!

Once an initial guarding position has been established, the defender may legally move laterally or backward to maintain his position, and thus, can draw a player control foul while moving.

If you take your casebook tomorrow night, show them 4.23.3 (I am looking at last year's case book, but doubt that the play has been removed.) This should give them a good example that you just might know what you are talking about.

But then again, just remember that Rome was not built in a day.