Final answer:
Adopting external recruitment methods typically leads to a company having a larger pool of candidates. This method provides access to a diverse range of skills and experiences and enables reaching the hidden job market through various networks.
Step-by-step explanation:
When a company adopts external recruitment methods, the most likely outcome is having a larger pool of candidates to choose from. External recruitment opens opportunities to a broader audience which isn't limited to the company's internal staff or immediate network. It also allows the company to reach candidates with a diverse range of skills and experiences that may not be present within the current workforce. However, contrary to some beliefs, it may not necessarily lead to lower recruitment costs or a shorter recruitment process as attracting, screening, and interviewing a wider range of candidates often requires more time and resources.
Furthermore, accessing the hidden job market through networking, social media platforms like LinkedIn, and exploring opportunities with temp agencies can significantly expand an employer's reach to potential candidates. Professional HR practices and the leveraging of multiple recruitment channels help to mitigate biases and increase the chances of hiring qualified candidates by ensuring a fair selection process.