Your company is terrible at hiring.
I state this with a high degree of confidence, not because I have such little faith in you, but because I have such little faith in the hiring process.
Given the number of ways in which standard hiring processes routinely fail employers and candidates—and risk reinforcing diversity shortages—I’m inclined to believe that when things work out, it’s not because of the process but in spite of it. Consider how things can go wrong at every step: