I run this for my Midget(U15) boys community team who are not particularly gifted outside shooters. Its a solid platform vs Man2Man and creates a lot of mid-ranged and inside opportunities. You can also have the forwards slip (fake) the screens to the wing/guards and cut down and setup a low post-up opportunity. Getting miss-matches or lagging defenders is the objective... and you'll be surprised at how this motion opens-up the middle of the key.
if your going to ask a question ask after they run the drill a few times and to see how its run correctly not when they fuck it up after 3 tries and still don't get it.
Pick and roll ist most effective vs man2man defense. That said: every setup that introduces a lot of movement in to your offense can be effective against zone. In the case of 2-3 zone - it's weakness are the wings/perimeter foul line extended . So if you have good outside shooters this might be a way to create some open shots for them. Classic rolls and/or dribble penetration will be harder, because 2-3 covers the lane usually well. So unless the defenders are very aggressive and over commit or get confused by the quick motion and loose coordination , it will be hard to get to the rim with such plays.