It's every leader's worst nightmare. You get a message from a department head saying that one of your mission-critical employees has unexpectedly quit. You'll need to find a replacement with the right skills and experience to fill the void on the team. And you need to hire them yesterday. The problem is, of course, that recruitment takes time.

When you advertise a vacancy, you’ll receive a wide variety of applicants. Some candidates might be underqualified; others might be overqualified. If you’re lucky, a few of them will be perfect. But every applicant has one thing in common.

Running a team of any size involves a lot of admin. You have to organize payroll, administer benefits, oversee recruitment, and deal with queries from the team—all while ensuring that you stay compliant with labor laws.

Would you make product changes or launch a new marketing campaign without knowing where the business stands and tracking to ensure the efforts have the intended effect? Probably not, but companies that pride themselves on being data-driven often don't apply that same analytical rigor to their talent acquisition.

It’s every hiring manager’s nightmare.

Whatever you think about Glassdoor, one thing is certain—you can’t ignore it. Employees know about it, candidates know about it, and Glassdoor rankings often appear at the top of Google search results.