We won't have the money to sign either Marion or Gordon; the only realistic way we could bring them aboard would be a sign-and-trade using Ray Allen's expiring contract. I wouldn't make that trade, especially for two guys with apparent attitude issues.
I'd be okay with a lot of the guys who should be cheaper. Rasheed, McDyess, Anthony Parker, Zaza Puchulia, Brandon Bass, Joe Smith, Grant Hill, etc., etc. would all fit this team.
The only real weakness in next year's market seems to be backup point guard. Bobby Jackson might not be bad.