Given that 'long haul' paid for all those things over the years- the jet base, the training centre, MBA, engineering centre, etc- I presume that when the $350M is realised it is put against the long haul side of the column?
Of course, whilst the gain of that $350M will never be realised against long haul, the cost of building the new facilities will of course be sheeted against the 'under performing' mainline brand.
