Your thief is my eclecticist...
Scorsese has also been borrowing heavily from the works of other great directors, but I wouldn't employ this fact as an argument against him.
You're assuming Scorsese is a good director? I think he's shit actually.
Tarrantino is a good director. Pulp Fiction might not be "ground-breaking" but it is a great film. Post-modern? But the best of Tarrantino's generation, in my opinion, is Chris Nolan.