I wouldn't want him to go, even if somebody did pay £30mil for him. Finding a replacement could be a challenge anyway, even if we did spend that all on a new LB... but either way, I don't think we need the extra money from selling. We don't need to be a selling club any more - we've got plenty of cash.
If Cortese is serious about us challenging for Europe, then he'll hang on to our best players no matter what's on the table.