Southampton was a jewel in the crown for BRAL, but it competed on a number of routes pretty well directly with LHR. For all the reasons that fat'n'grey mentions, it was a winner and had a huge catchment.
Our SOU personnel watched over the last 2 - 3 years as marketing was withdrawn, and competition surrendered to.
They pointed it out over and over and over, and begged management to get the message. Management consistently said things were about to change, whilst doing the square root of eff all. The problem is that BA don't WANT a successful airline at SOU. It shows, however, their complete dunderheadedness that they don't see that FlyBe are poised to become the success that BRAL were. They deserve it too. But then, remember that BA were the strategic and tactical masterplanners who sold GO..............
I fear....."The End is Nigh".........