Eventually, someone at the top will get it.
1) Tossing bodies at a project will not mean the project will be done a) right and b) on time.
2) Short term profits over long term goals is a stupid thing.
3) Temporary people have no vested interest in the company. They're there to do something even it's not right. Only a long term employee who has the vested interest will do it right.
4) Cheap in... cheap out. Your customers will know the difference even if you don't.