I think Melo is the wild card. If he can become a rim protecting, elite defensive center, thats a really good team.
The calculus changes if any of the guys we have turn into all stars, but I'm imagining a 2014 where:
- Fab Melo is a decent backup center
- Jared Sullinger grows into something between David Lee and Elton Brand
- Jeff Green is a top-notch 6th man, like maybe Taj Gibson
- Avery Bradley grows into Tony Allen on defense and Mo Williams on offense, and
- Rondo keeps doing what he's doing.
- Bass keeps doing what he's doing.
- Courtney Lee settles down and improves his shot selection
That's not a crazy pie-in-the-sky future where everyone is an all-star, but it's a future where everyone fulfills a big piece of their potential and grows into a formidable group together. Add an all-star scorer or a very good defensive center through free agency and you've really got something there.