There is a big problem now though.
If FSG are not willing to sacrifice BR because of the costs of getting rid of him (money is a huge factor to them), BR is very unlikely to quit on a very low, which he is at now. For him that would be career suicide, and limit his options of getting another position in any decent club, so, he should hang on and try to turn this around, fast.
Don't get me wrong, I would be fine with hearing in a newsflash today that he had gone, so long as his replacement was of a much, much better calibre. All I am doing is looking at the position the club and manager are in at this moment, and a lot depends on how big the balls are of FSG.