I am starting to think that overall BA buying IB was not a very good idea, admiringly, they gained a lot of South American routes, but at the same time IB need to reorganise and restructure and Spain is not doing to well at the moment
Personally I feel if BA want to improve their South American network, they should have spent the money buying IB on buying further LHR slots
I have also felt in the past that LH or KLM where better merger partners in the past (the problem was airline alliances for a start)