Scrimmages for dribble-drive motion. Olesen always uses a "defence ball" rule in practice, defenders get possession any time they deflect a ball out of bounds. Deflections in a game lead to steals, and disrupt the offence, he wants to reinforce those hustle plays and reinforce to the offence that they must take care of the ball.
a) Direction (4 on 4)
Post players can be working at the other end. Coach has the ball in the middle of the floor and starts play by passing to any attacker (if he passes to 2 or 3, ask them to elevate first). You want a one-guard front, so on any pass one of the guards will cut, on a pass to 2 or 3, the ballside guard cuts through (or makes an X-cut), on a pass to 1 or 4, the other guard will brush cut, nail cut, corner cut, or through cut.
(Option - don't allow kickups to start.)