Michael Martin steps down as Speaker of the House

So Michael Martin steps down as Speaker of the House due to this expenses debacle. I guessed it would happen as the long knives have been after a head for a while now. Fact is though, this man is just a scapegoat to shift blame from the MP's who VOTED FOR this expenses system in the first place.

When someone figures out a way to scam the benefits system do we prosecute the person committing the scam or the head of the home office who is ultimately in charge of the benefits system?
If a manager scams an expense system that he helped implement, do you fire the manager or the person who was charged with overseeing the expense system?
The whole expense system for MP's is broken, a system they voted for 5 years ago. This is an exercise in attempting to placate the layman of politics into thinking that the problem is solved. A new speaker will "be able to lead us (the MP's) to a fairer more just political system" to paraphrase what a number of MP's have said. This is utter rubbish, as if the MP's need to be "lead" to what is fair and just then they do not deserve the position they hold. It makes me so angry that what appears to be a snake like maneuver to save their collective reputations will almost certainly be accepted by the majority of the populace. But hey, politics has always been like that. Since the first shaman blamed a tribal loners bad mojo for the failure of his spells to bring rain, there has always been a fall guy.

I believe that the police need to be involved in an investigation of all MP's expenses going back to the new legislation. All politicians found guilty of cheating the system should pay all money back and be removed from their position.

A new expense system should be put in place whereby MP's who do not already have the means (unlike say David Cameron who is sickeningly rich) should receive allowances for a second home when their constituency is outside London.
MP's should be given an allowance for staff which cannot be used to employ family members, and must disclose the qualifications of those they do employ.
Finally they should be allowed to make expense claims in line with any other business person for things like subsistence and travel as laid out by the Inland Revenue. Trust me, the IR is far from generous with expenses.