How can the following sentence be rewritten to make it sound more formal and detached?

he accused meghan of causing all the dirty work he had to do.

he pointed a finger at meghan for all the dirty work he had to do.

he condemned meghan's mistakes as the cause of all the disagreeable work.

he attributed much of the disagreeable work at hand to meghan's inadequacies.

he slyly shifted the blame for much of the dirty work onto meghan's shoulders