Not sure what you mean here. On my 5-box team, my main leads out, and the other 4 follow him. When I stop moving, typically the other 4 are standing right on top of each other, almost blending in to each other -- is that what you mean?

If that is, it's easily solved (not that it really needs to be solved) by re-binding your movement keys. See, I use the arrows to move around, and now W is bound to left-strafe for #2 shammy, right strafe for #3 shammy and backwards for #5 shammy. I move, and if I want to spread them out once I've come to a stop, I just press W.

I stay still (W is unbound on my main), #2 goes left, #3 goes right, #4 stays where he is, and #5 steps back a step, making for a "+" sign configuration.

It's usually at this point that if someone sees me they go "Wtf", since my Shammies are all identically equipped and configured.