Great companies, large and small, rise or fall because of their talent; the more high performers on your team, the more successful your organization will be. Of course, that's easier said than done. Research shows that only about 25% of all new hires turn out to be high performers.

But companies that have used Brad Smart's Topgrading system over the past two decades have boosted their hiring success rates dramatically--sometimes even to 90%.

Three huge problems account...