In message , at 18:38:39 on Fri, 17 Jun
2016, tim... remarked:

The two airlines from our side would undoubtedly be BA and Virgin.
Market closed to any others.

so what, 4 airlines flying to LHR, plus various options options via
other airports looks like enough competition to me

Most people would disagree.

It's our asset we are negotiating away.

But without agreement from both, we could lose much of the asset.

Only if we are stupid negotiators

I believe that you do this sort of thing for a living. I don't
understand why you think we would give it away so easily

Because if you have little bargaining power you can't insist the other
side agrees with your point of view.
--
Roland Perry