I think if ba were to be the purchaser of mainline, ie the Lhr slots, the only people that might be kept on in the whole would be the crews. As has been stated earlier the slots must be flown. BA is in a recruitment mode. BMI mainline will not be allowed to fold as this would result in the loss of the slots. BA would have a hard time arguing that the crew positions were redundant at the same time as having recruited a few hundred new pilots and a thousand odd cabin crew.