Don't assign scouting to the "extra" people just to get them out of the pits. Scouts should have done enough work on their own robot to totally know what they're about.
I do all the pit scouting for my team (I made our scouting sheets myself). I decide our team's strategy every match so I know what I'm looking for in our alliance partners and opponents. I did a lot of the mechanical work for our robot (including all the ramp construction) so I only ask "inobvious" stuff like autonomous & weight (not weight class).
I was one of the busiest students at the VCU regional -- I'm on pit crew, strategist, rules expert, and ramp upkeep/repair. The point is that you can probably spare someone who knows what they're about for long enough to scout all the teams -- just make sure you have their phone # before they head off.
BTW if you see me in Atlanta on the floor peering under your robot don't worry -- I'm just counting motors or drive wheels or something.