SET like Space 1, 2, 3 ...

4th Option
If 2 gets the first pass from 1.

1 screens away for 4.
4 cuts to ball-side.
5 screens for 3 and 3 cuts through looking for an easy lay-up pass from 2.

2 has two passing options (1,4).
If 4 receives the ball he should look for an open shot or a drive with 2 screening for him.

If 1 receives the pass there is a two man game on ball-side again and weak-side runs FLEX.