I think a few of us know that if a manager at BA has a pet plan they drop it into unofficial discussion in order to test the temperature of the water and start rumour and possibly dissent running.
I hope for one the BACC and membership would put an end to any flexicrew plans PDQ, then again there is the argument that if somebody who is not a member of BALPA wants to negotiate their own contract BALPA can't intervene....I think BALPA has in theory more leverage once people are on the master seniority list.
I'd also commend the comments planesandthings made about T&Cs and the example of mixed fleet. If BA can get away with low T&Cs they will, regardless of tradition/flag carrier etc