It's easy to turn round and say 'get rid of Benitez and bring in O'Neill/Mourinho/whoever' but there are several points that need to be factored in first:
1) Benitez is on a contract until 2014 - four more seasons. To get rid of him, the club will have to pay out a massive amount of compensation. Are we really in a position financially to be able to meet that compensation package?
2) O'Neill, Mourinho and all of the others who have been linked to the post are all in contract. This would mean an equally massive compensation sum to the losing club as well as an increased wage package to the new manager to make coming to us more attractive.
3) We are hugely in debt, meaning that a new manager will not get any kind of proper buying power to rebuild a team capable of getting back to speed. No manager worth their salt nowadays, and especially the likes of Mourinho, will want to leave their current situation and come to a club where their hands will be tied behind their back almost immediately.
Admittedly, I was/am a member of the 'In Rafa We Trust' brigade, though this year my patience has been severely tested. Taking these factors into account, especially the third one, are we in a position to realistically seek a new manager? In an ideal world, I would like to think that the third factor wouldn't come into play as a new manager of the quality akin to those mentioned above would have the leadership, skill and all-round cajones to get a grip of the club and drag us back to the top with little or no funds available. Bill Shankly managed it in the 50's and 60's however that just does not happen nowadays.