3-whistle coverage in transition

[Z REF]

I have never had a college supervisor instruct me to get that call from the lead. Any collegiate official who is consistently "beat" on that play at C probably won't be in that conference for too long.

Having said that, if there was definite, meaningful contact that created a disadvantage for A, and C for whatever reason didn't get it, then L could step in...but the first whistle?

But this guy is on TV, and I've seen the boys on TV do some strange things that aren't taught in camps or jamborees...so...when in Rome...