40x30 yard field with 5 yard wide zone (channel). 

3v3 in central area (4v4 if needed) with a target in each channel.  

Game begins with one team in possession.  Team must play the target player before scoring.  Attacking players can move to any part of the field once in possession.  

Players in the channel play for both teams.  They are working on wide flank overlapping runs and service.  They should be rotated every few minutes (or after each goal) to allow for rest with another player shifting into the channel.