Currently BA can have up to 7 flights ex BHD to LHR and EI 3.
Replace that with 3-5 (depending on day) with a 767 and that frees up a hell of a lot of slots for IAG
And how many 767s (for idiots, no requirement for an apostrophe when using the plural) do BA/IAG have? In my experience, the only 767 used for domestic is heavily milked going to EGPH/EGPF through the day. I stand to be corrected, but doubt most on here have a first clue.