Groove the timing. Rehearse the overlap, the run to the byline, the delivery and the timed finish before a defender is added.
Unopposed, rehearse the overlap, the run to the byline, the cross and the finish. Emphasise the timing of the overlap, a quality delivery, and the striker timing the run. Vary the delivery: near post, cut-back, far post. Rotate the roles.
Fork it into your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block.