Not strictly lay-up lines, as the shot type will not actually be a lay-up to begin with, but it is the same premise. The first in the 'shooting line' (red) will dribble in, and take a jumpshot from a specific mark. The first in the 'rebound line' (blue) will then run in and collect the ball, before dirbbling it back to the shooting line. Both players will join the back of the opposite queue (shooter to rebound, rebounder to shooter).
Good team defence is five players guarding the ball, not five separate one-on-ones. The shell drill is where that starts, so here is how to teach help-side positioning and rotations from the first week of the season.
Rebounding is the least glamorous thing in basketball and one of the most decisive. It is also almost entirely a habit, which means it is entirely coachable.
Good spacing is only the start. The best modern offences teach players to attack the defence's rotations and play in a permanent 4-on-3 - here is how to coach that read.