This is the 2nd step to teaching a lay up.
From the right side (as in the example) player takes one step forward with their left foot and then drives the right knee up (as if their elbow and knee were attached with a piece of string) to finish the lay up they aim for the little black square on the backboard, as in step one.
Four players standing still make every ball handler's job harder. Teach V-cuts, L-cuts and back cuts so your team gets open and punishes defenders who overplay.
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.