my understanding (based purely on what's been going on down here at Portsmouth) is ACL have made the application and they can therefore propose an administrator, SISU can object and / or propose an alternative administrator or the court can appoint anyone else they feel like. I can't see how any court we sell CCFC is a viable business as it is now so admin seems pretty nailed on unless someone backs down. From there the administrator has 2 jobs, one to get a return for the creditors (I imagine SISU will be far the biggest) and sell the company whole as a viable business. If they feel there isn't a viable business or a serious buy they will liquidate to recover the maximum amount possible for the creditors.
that's just my understanding tho, could be wrong - I'm far from an expert!