despite the TUI name being in the UK since 2000, when they bought Thomson Travel, 99% of the people I talk to say they have never heard of TUI when I say it is who I work for. Thomson however is one of the most recognised brands in the country.
Lets see how many tens of millions they have to spend in marketing to drop to Thomson and First Choice tour operating brands.
The airlines become irrelevent, since 99% of the passengers couldn't even tell you wich airline they flew with on their package holiday....
From an airline view, it makes sence to have all of the aircraft with "TUI" on the side, since then they can all just be swapped about without looking a bit strange.
As as the earlier post suggests, all of the back office will be centrallised, the individual airlines will just have Post Holders, Rostering and Planning in them.