Dan Shapero, Vice President at LinkedIn Talent Solutions & Insights, discusses the challenge of knowing when and how to prioritize candidates. He recommends leveraging social media, existing social connections within the organization, and targeted outreach to senior candidates. Scaling outreach through engaging content on platforms like LinkedIn allowed one company to reach over 1.8 million people and engage nearly 350,000, with over half of engagements coming from mobile devices. Understanding talent flows, pools, and an organization's talent brand index can help identify critical candidates to pursue.