The primary challenges include sourcing a large volume of high-quality candidates, ensuring a good cultural fit, and integrating them into the existing team structure. These challenges can be mitigated by employing a combination of strategies like leveraging AI for initial screenings, hosting virtual career fairs, and engaging in targeted social media recruitment. Partnering with a firm like TurnKey Staffing, known for its custom recruiting and rigorous screening process, can also significantly streamline these challenges.