Raise the heart rate and mobilise the whole body before training: move through a dynamic-stretch sequence with control and full range.
Mark a channel about 30 yards long with cones at each end. The group works down and back in waves, doing a different dynamic exercise each length: leg swings, walking lunges with a reach, high knees, open and close the gate, heel flicks. Move with control through a full range, then jog back to recover between lengths. No ball needed. Build the pace gradually over four or five lengths.
Fork it into your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block.