Preventative Officiating

[Luv4Asian8]

Had a situation during a scrimmage in the post play (of course, right?) where A5 and B5 are both jostling for position 3/4 across the key. I'm lead (2-whistle). A mentor of mine told me to identify the knuckleheads early, and here they were. I tell them to knock it off, but neither heed my warning. Then the ball comes toward me in my peripheral outside the 3-pt arc, also aggressively contested. I widen my angle to try to see both actions (ball & post). In my judgment nothing really happens either way.

However, my evaluator at the scrimmage saw me warning the post players and thought she saw me take my eyes off of them when the ball entered my area. She then told me that the post players really became more aggressive.

Should I have killed the play with a double-foul on the post play since they didn't "hear" me or protected the shooter? I know that many areas frown upon the "double foul"....get the perpretrator first. But I couldn't tell. How do you handle this kind of thing?