Even though IAG are acquiring BMI, companies under the umbrella of IAG, providing they do not merge, maintain their own seniority list. If a circumstance arises whereby IAG choses do direct a merger between two of it's own subsidiaries then the case of the merged seniority list applies and all that this entails. BA can suggest that none of it's pilots will be disadvantaged and legally they are not breaking any laws of employment in that no redundancies are forecast, no significant changes to terms and conditions are being suggested and for the junior SFO/FOs they will still have a career progression within BA, albeit delayed commands. This last point however becomes a major bone of contention with the age demographic of both BMI and BA.