Vince Cable
Three points:
(1) If Vince thinks that about London, then stop whinging and do something about it. As a Libdem in a senior position in government (very rare indeed, unlikely to be repeated), he has had a once-in-a-lifetime opportunity.
(2) MAN is not operating at 99% capacity and has the same number of rwys as LHR, not exactly a problem there. Davis has concentrated on LHR and LGW because LHR is full and LGW will be soon. LHR needed to double its rwy capacity years ago, MAN already has.
(3) Apart from a handful of restricive bilateral agreements, there are no impediments to carriers wishing to operate to/from MAN or any other UK airport. If they can make money, they will be there. It as simple as that.