QUESTION $1$: $[13]$

$1\mathrm{.}1$ You are a young IE graduate who just got a job as a plant manager in a newly established manufacturing company, and you are require to supervise or be the line manager of other production managers within the company.

Along the line of your supervision, you observed that some of the experienced managers repeatedly ignore new evidence relevant to a decision because they are using the case of evidence$-$based management of Sutton and Pfeffer

Identify and explain why they are using this method