If you don't get a resume on the first day a superstar comes on the market the clock still starts the day they start looking. If you are slow in capturing their resume, you still lose. Capture the candidate the day they become available with continuous relationship building and sourcing. If you don't look at the resumes you have until after a req opens. Use the same criteria to rapidly qualify resumes that are received when there is already an open req.
Contact superstars on that day.
Train, measure, and reward recruiters and managers for a fast response time and for the quality of the hire and for a short time to hire. Meet or phone interview them within 1 - 3 days. Kill the paper and make all resumes electronic.