Eggshell has the "bestest" suggestion. When I buddyhunt we are staggered with the shooter to the front and the backdoor to the rear and opposite side of the front shooter. This means that if the front shooter is right handed, the backdoor is behind and to the right and back of the shooter because a right handed shooter can't rotate to the right very far. Just the opposite with a left handed front shooter. This is for safety. Until you really know and trust the backdoor only the front hunter shoots.
If both want to shoot then it's best to sit close together and have a defining marker (tree, stump, buzzard on a dead possum, etc.) that marks the line for who takes the bird... if tom's on this side he's mine and on that side he's yours.
Staggered, we never space more that 10 to 15 yards apart and make very sure that we can see each other. That's important for safety, too. Always know where your partner is and be able to see your partner.
Sitting apart and staggered we both call, playing off each other. As often as not we call in a dominant hen, who drags in the other hens, who drags in...well, you get the point. Hunt fun, hunt safe.
Lordy, let April 19 come soon.
"Remember, you're never too old to have a happy childhood."