Two players with one ball. Player 1 passes to player 2 who goes diagonally to the first cone, touches it and returns to the starting point, before receiving a pass from Player 2. Player 2 does the same as Player 1. They then give another pass and go to the second cone before repeating process.
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.