I don't think Miles will be that hard to move. He was having a breakout year last year until he went down with knee surgery. It was his first major altercation or incident in his NBA career with a coach/team, and I don't think its a coincident that it happened with the Blazers.
Randolph on the other hand, is a very good player, he lacks on the defensive end, and sometimes falls in love with his jumpshot, but he's really tough to stop in the post. I believe I brought up a C-Webb for Randolph type trade, it would benefit the Blazers for sure. Webber has 2 years left on his contract, and would be easy to trade after next year due to his large expiring contract. Plus he can still play, and will buy time for Aldridge.
As for Randolph on the Sixers, when wasthe last time they had a low post scorer like him? Maybe that's the missing part of the team, because Tim Thomas, Tyronne Hill, KVH, Webber, McCullouch, Coleman, Deke, Dalembert among others haven't really done much for them in terms of scoring in the paint. Though, I'm not sure how the whole Cheeks and Randolph thing would workout though. I think Randolph will realize how he should be thankful to have a coach like Cheeks after what happend last year with McMillan. Randolph + AI = lots of money, but the Sixers have to do something significant to get this team to win.