How can we save money by hiring directly as opposed to using a temp agency?

Q: “We use a contract temporary labor service. Due to the need to lift pay rates to attract employees, we are considering hiring temporary employees directly. In Texas, what is the maximum time we can hire someone for without providing full or partial benefits, or being responsible for an unemployment claim? What is the minimum time before an employee can be released, and then be rehired with the clock restarting?" – Jamie, Texas