Catch the strong onesCatch a strong candidate: +1 hire. Miss one: a competitor takes them, that's a mistake.
Let red flags passCatch a red-flag candidate: they spoil the team, that's a mistake. Let them pass: correct.
Watch the vacancyEvery 8 hires the vacancy changes. “Knows SAP FI” is strong for an accountant, not for a developer.
Faster and fasterThe longer you play, the faster CVs roll. 3 mistakes and it's over.