Allow me to clarify something: bmi is not full of pilots who've failed the BA selection process. bmi pilots are, in the main, people who like flying for a smallish, friendly outfit where you can get to know a significant proportion of your pilot and cabin crew colleagues. Those pilots hell-bent on flying big aircraft around the world will have stayed for a while then headed off to Virgin, BA or the desert.
Lets see how many choose to stay on the "nice friendly little fleet" when given the option to move to the big unfriendly fleets then.