Want to Retain and Engage Talent? Onboarding is the Answer: Recruiting great talent is no easy task. Research shows that replacing talent can cost as much as double annual salary. Since it can take a lot to bring the right employees into your organization, you want to keep them around for as long as possible. Just as businesses know that it's more cost-effective to market to existing customers than acquire new ones, maximizing talent retention can be a major gain.