[refbuz]

For the Coaches Meeting:

You might want to confirm the time of day with both coaches.
Not sure how your league works it, but you might want to get game balls from the head coaches.

Since it is a mixed crew, you might want to discuss keys and some of the following mechanics in your pregame so that the crew is on the same page:

Coin-Toss (Who's got what?)
Dead Ball Officiating
GoalLine Coverage.
Who's ruling on Forward Passes on the quick outs? If it's a 1, 3, 5 step drop?
What are you doing if its Backward?
Who's key is the Man-in-Motion?
Who's Counting Offense/Defense?
Trys? Responsibilities if it breaks down?
Who's got LOS/Ineligibles downfield responsibility?
Who's calling illegal forward pass if QB runs away from sticks?
Roughing/Grounding help?
Penalty Proceedures (Who's got the ball, who's covering flag)
Ball Rotation (if applicable)
Who's Timing Timeouts?
Discuss Game/Play Clock.

If it is a close game review OT @ halftime.

After that, it there's enough time try to talk about screwed up plays or something you heard about.

Good Luck with your first assignment as the hat.