If I knew Rondo couldn't play at all this year, I might trade him to a bad team for their 2014 pick, a young player, and another pick a few years into the future. For instance, if he couldn't play, I'd trade him to Philly for Noel, this year's pick, and maybe something in 2018. (Considering they got Noel and a 2014 pick for Jrue Holiday, this isn't a completely ridiculous offer, just merely an offer that won't happen). Something like that would give the C's the potential for two top 5 picks, and that could be a serious reboot.
I'd generally prefer to keep Rondo, but there are certainly offers centered around 2014 lottery picks that would make me change my mind. I don't expect any of them to happen, however.