It's the weakside action.
Melo wasn't even shooting the ball well.
If they can run more of that stuff in games, they'll be a much much better team on offense.
Not just Melo/Lopez screen&roll, it can be many things in that weakside where there's 2 players - can do multiple plays.
Screen & roll
Screen & pop (Porzingis can do this very well)
Give and go
Weakside wing isolation
Post up and cut to the basket (After making the post drop the player cuts towards the basket)
Pass and relocate
You can use many combo of players in the 2 man game side. Lots of options we have.
Melo/Afflalo
Melo/Lopez
Melo/KP
Grant/KP or Lopez
Calderon/KP or Lopez
DWill/Lopez or KP
We have a very effective group of guys in regards to skills needed for the 2 man game side.
If the sideline Triangle is formed on the other (strong side) gives them maybe less motion in the offense, but more opportunities for spot up 3's or dunks inside if their man goes to the weakside for help defense.