I agree with NorCalMike. As a U, I only move towards the LOS when the QB scrambles towards it. With so many drag routes that offenses run today, if I made a beeline to the LOS like we did in the "old days" I would take out slot receivers who were crossing, and affect the play in a bad way. Both of my crew's wings would have drifted downfield as they read pass, so I doubt either would have been helpful on this play. On one this close though, my R has said repeatedly in the past, I will make this call. I will give my .02 worth to him as well. In 23 years, only have had one play that was as close as this, but film backed me up on my no-call.