The USA National Team found great success running this set in the last FIBA World Championships. A lot of teams run actions similar to this but always set the pick away from the play (left to right in this case), but by having two screeners there gives the guard options by reading the defense.
3 cuts up the middle between 4 and 5. On the
catch he has the option to come off 4 or 5. Whoever
sets the screen is the roller, other big is popper.