Blame the staff

We're just about reached the "blame the staff" phase of the Senate expenses scandal.
Harper is laying the groundwork for finger-pointing:

“They are reviewing all of their expenses to ensure not only that the expenses are appropriate but the rules in the future for governing such expenses are appropriate”

Yes, indeedy, now its "the rules" that are to blame.
And who wrote and enforced those rules? Why, the Senate staff.
The audit report is going to tell us that the staff "misadvised" and "accepted erroneous travel claims" and "neglected to require documentation" and in the end some clerk in the Senate office might be transferred.
In the meantime, let's investigate Mike Duffy's parking place.