Chain two one-twos into one advancing run, and split the group into a static setting job and a moving combining job so both can be coached properly.
Mark an inner triangle about 9m a side and an outer triangle about 26m a side around it, a player on each of the six points. The outer player with the ball plays a one-two off the nearest inner man, takes the return on the move as he advances towards the next outer point, then plays a second one-two off a different inner man before releasing the ball to that next outer point. He jogs back to his own cone as the next beat runs. Inner players never move off their spot and never take a touch: they set everything first time. Swap the inner and outer groups every five to eight minutes.
The reason to build a second triangle inside the first is that it separates two jobs that a single triangle forces one player to do at once. The inner players only set. The outer players only combine and run. Each group can therefore be coached against a single standard, and the standard for each is unusually clear.
For the inner three it is one touch, no turning, and no drifting. The moment an inner player takes a touch, the outer player who is running past him arrives too early and has to slow down, and a drill about advancing has become a drill about waiting. The moment an inner player drifts off his spot, both triangles lose their shape and the distances stop meaning anything.
For the outer three it is that the run comes before the pass. A player who stops, passes, and then starts running is chasing his own ball and will always arrive late for the return. A player who is already moving when he releases it arrives at the same time as the set, which is the only version of this that looks like football.
Chaining two one-twos rather than one is what separates this from every simpler version of the exercise. A single one-two is a moment. Two in succession is a passage: the player has to receive on the move, redirect immediately into a different teammate at a different angle, and keep advancing while doing it. That is a genuinely difficult sequence and it is exactly what happens when a full back plays past a press.
Swapping the inner and outer groups every few minutes is not optional. The outer job is a running job and the inner job is a technical one, and a session where the same three players do all the sprinting has trained half the group.
Save it to your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block. Or start from a blank pitch and build your own.