The most I would really give for Noel is 76er choice of Rozier/Jackson, Hunter/Young, and Olynyk and maybe the protected Clippers pick.
Gets three guys off our books, the PG's both have upside with Rozier being a good choice for a strong perimeter defender with a developing offense, or Jackson with a strong offensive game and a good defensive player as well. Hunter and Young both have potential (technically Young has potential) as guys that can stretch the floor and Hunter showed to be a strong team defender, while at Kentucky, Young showed to be a good 1 on 1 defender with potential (again not shown in NBA) to be even better. Olynyk I would offer as a floor stretcher with good team defense that can back up Simmons and small stretches at Center and SF. Olynyk can be replaced with Jared Bayless in FA.
Pretty much exactly what Philly needs.
I think Smart could fit with them, but I would rather offer a few pieces of need for them that tightens our roster for a guy that is ultimately probably a good piece rather than the star that Philly fans make Noel out to be. ALso, in terms of what they bring to the game, I view Smart and Noel kind of a wash, and I feel that Smart has a lot more passion and fire in him than Noel which is a big thing for me.