Well I guess all the scouting for the draft has been completed. The draft board is probably stack ranked. Team needs are understood.
So what is not understood is how the Raiders plan to maximize talent acquisition in this draft. They don't really need the scouts for that unless they want to plant some stories to be leaked. Anyway scouts probably talk and secrets get out and Gruden doesn't want anyone to understand how he is going to play his cards.
Gruden and Mayock probably have a plan that they want to keep secret. Scouts aren't in a position to add value and only can screw things up so they get some extra vacation time. Seems to make total sense to me. A real win win situation.