[David B]

When I'm doing training this is one of my points of emphasis; however, I don't know about all the secret signals.

I usually will know that I might have missed something,
(the coaches actions, players actions, etc.,) and at that point if it is a play that could use some information I will ask. If a play as you described and everyone was watching something else, then forget it.

But, I can hear it now. "Mr Blue, I see BU's got his hat off, why don't you ask him what HE saw".

See lots of coaches are also umpires etc., they know what to look for just like they know when they are dealing with a gualified and an unqualified official.

But everywhere I've gone to officiate everyone has their own little quirks, to each his own.

Thanks
David