I have to keep asking myself firstly "why Air Scotland would use the Boeing 757-200 in the first place?".
I know that the 733 would probably have some difficulty in flying on some of the Med routes out of Scotland, but surely they could have found a wet-lease operation flying the A320 or the 73G series of aircraft. Whilst these aircraft do have less seats (which would ultimately mean less cabin personnel for a low-cost outfit), they can also be turned round in about 35 minutes on long sectors. I know from experience with Air Atlanta, that the airline will not guarantee to be able to turn round its 757s in under 55 minutes. That's a long time!
Surely the airline would want to use smaller types to be able to mix business routes with leisure routes and also to keep costs down?
And even if they did want to use the 757, why not use Thomas Cook directly, rather than some foreign outfit noone's heard of, especially after the Electra Airlines debacle!