$10-$ Syed, a human resources manager in an investment company, has to decide whether or not to revise the company's employee recruitment process. The existing recruitment process has been in use for the last eight years, and Syed believes that the process is effective. However, research shows that the existing process has been mostly ineffective and has resulted in high turnover. However, Syed ignores this evidence and decides not to revise the process based on his belief. Which of the following concepts related to decision$-$making does this scenario most likely exemplify?