We can see why you might think so, but the simple answer is: no. When multiple vendors are in the mix, you’ll be dealing with multiple delivery timelines, with less visibility into the effectiveness of any given partnership and diminished alignment around your goals.
There are distinct advantages to working with a single staffing partner, on the other hand. For one, you'll be able to create and implement SLAs and KPIs that both parties are accountable for. You’ll benefit from timely reporting on your progress, as well as direct oversight for all initiatives. Plus, a dedicated staffing partner can help you refine your understanding of needs and priorities, while zeroing in on intangibles like personality and workplace culture that make for successful new hires at your company — and that alone can drastically reduce average time-to-fill.