On one hand it's true, on the other people want stability in their jobs. You need a compromise between flexibility for the employer and stability for the employ

On one hand it's true, on the other people want stability in their jobs. You need a compromise between flexibility for the employer and stability for the employee, and one such compromise (in this area) is having a consulting company whose contract with the client can be easily terminated, while keeping the actual people doing the work with a job and stable income.