"the expedient of" is a correct and usable phrase in written English.
It is often used to describe a necessary action or solution that is chosen for practical reasons rather than ethical or moral considerations. Example: In order to save money, the company resorted to the expedient of cutting employees' salaries instead of laying off workers.
Diem neutralized the religious sects by the expedient of having Lansdale use C.I.A. funds to buy them off.
Easel paintings were limited in size, which chafed at Lawrence's ambition to undertake epic themes, and led him to the expedient of painting in narrative series.
In the end, Japanese engineers hit on the expedient of digging a parallel drainage tunnel the entire length of the main tunnel.
The expedient of selling space on the players' bodies — plastering their uniforms with corporate logos from neck to navel — is less than fully satisfactory.
The expedient of the rollers, like that of the words that Wool proceeded to paint, suggests the ledges to which a rock climber clings by his fingernails.
Scissoring shapes from gouache-painted paper and directing assistants who pinned them into compositions over and over, until they were right, was the expedient of a genius.
To all this must be added the expedients of the retailer, the tricks of the drug-store, the forging of medical permits, and the resourcefulness of the private adventurer.
What, then, of the expedient justifiers of state action who defend unchecked surveillance upheld by secret laws in the name of safety?
Instead, however, the band win the crowd around, by the simple expedient of playing the hits, with Haim as guest backing vocalists: Loaded, Rocks, Come Together.
More rules would allow the expedient usage of different levels of difficulties and could enable more authentic scoring.
The hitherto-unnoticed rightwing sympathies of the Beatles Revolutionn are uncovered by the simple expedient of misquoting the lyrics.
