Is Porzingis worth the pick up?

This is a 6 team roto league, someone just dropped him to pick up an injured blake griffin(to put him in the IL spot). Should i capitalize on this and pick him up?

I'm thinking about dropping Zaza Pachulia for him

Edit: I also have Nerlens Noel in my free agent list.

I know this is a weird situation but my league only has 6 players and everyone has a team filled with stars.