0 (Set-Up)
1 - B2 either gets a longshot...
2 - ...or cuts back in for a short pass
3 - If B2 can't break free, thrower looks to dump handler for help, stack runner clears space to sideline
4 - B3 fakes upline...
5 - ... but returns for a safe dump pass.
6 - Reposition
and so on...