Groove the third-man pass: the lay-off into a player arriving in the middle, and his first-time ball to the far side, played before the receiver has to look for it.
Put a marker at the foot of the Y with the line of players and three balls. Ten yards up from it, place a pole for B. Twelve yards on, place a pole on each arm, about sixteen yards apart. One player waits behind the B pole and one behind each arm pole: C on one arm, D on the other. A passes into B and steps out to support on C's side. B shuffles out from behind his pole to the other side and sets it straight back to A, then spins round behind the pole into the middle of the Y. A plays it first time up to C and follows to wait behind the B pole. C shuffles out from behind his pole, receives on its inside and lays it off first time to B in the middle. B plays it first time across to D and follows on to wait behind C's pole, while C runs across behind the Y to D's pole. D comes out from behind his pole, takes it inside and forward, and carries it home on a diagonal. Swap the arms halfway through.
The third man is the player who receives the ball from a pass he was not part of. A plays to C, C lays it off to B, and B's first-time ball goes to D. The defender watching A and C never sees B coming, and the one watching B never sees the switch.
This Y builds that sequence from a set. B comes out from behind his pole, sets it back to A, and spins round the pole into the middle of the Y while A plays up to C. C lays it off into B's run, and B plays across to the far arm first time. Two passes through the middle, both one touch.
The detail that decides it is B's scan. He has to check where D is on the way into the middle, before the lay-off arrives, so his body is already open to the far arm when the ball reaches him. A B who looks after his touch needs a second touch to turn, and the rhythm breaks.
The rotation follows the ball: A moves up to B, B on to C's pole, C runs across behind the Y to D's, and D carries the ball home. Three balls and six players keep it continuous. C is always the same arm, so swap the arms halfway through.
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.