I said to some one recently that we're not so much parking the bus. but putting a ring of protection around the bus to stop it being ripped apart.This is a good point. I think even Jose has acknowledged this. He described it as "sleeping with a too small blanket" in an interview or something like that.
Either we shore up our shakey defence with a few extra midfielders, and sacrifice attacking power. Or we put our focus on attack and risk exposing the defence.