Pass and receive accurately on the diagonal. Open the body to receive, take a clean first touch across the body, and weight the diagonal pass to the far line down the channel.
Set two staggered lines down a channel. The ball weaves diagonally from one line to the other and down the channel, each player receiving on the move and passing across to the next. Play it down and back. Emphasise an open body, a clean first touch, and weighting the diagonal pass. Add pass-and-follow to the line you passed to as a progression.
Diagonal passes are harder than square ones for a reason worth naming: the ball crosses the receiver's body rather than arriving down its line, so the choice of controlling foot has to be made in advance. Get it wrong and the touch goes backwards, which in a channel this narrow means straight into the space a defender would occupy.
What separates this from the fixed-shape patterns is that the ball goes somewhere. In a diamond or a star the ball circulates and returns to where it began, and players receive standing on a mark. Here it advances down a channel, so every receive happens while travelling forwards, which is how receiving actually works in a match and almost never how it is practised.
That combination, a diagonal pass taken while moving forwards, is the specific thing being grooved. It is the receive a full-back makes when a centre-back switches into him, and the one a midfielder makes when the ball comes in from the opposite side.
The body position has to be set before the ball is played, not as it arrives. Opened towards the far line, a player can see the pass coming, the next receiver, and the space in front of him. Square to the passer, he sees the ball and the touchline.
Weight is the recurring failure. A diagonal travels further than it looks, and a pass that is comfortable across a static shape arrives short and behind when both players are moving.
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.