This is the Mavs most used SLOB play. They may arrange their personnel in different spots based on line up configurations.

3 inbounds to 5 coming off the zipper screen from 1

4 makes cut off step or seals then pops high to receive reversal. This triggers the FLEX action

1 back screens for inbounder (3 as diagrammed)

4 looks to enter to 3

5 down screens for 1 (flex).

If 3 does not receive pass, they continue out and screen for 2 in the corner. 5 screens for 2 as well.

4 reverses to 1 who may look for 2 cutting off baseline double

After reversing, 4 down screens for the screener Player 3. (flex)