Have you ever had to work with a difficult co-worker? How did you resolve this issue?

‘At NAB as part of the project I  had to create and report on the functions of the company's training department to analyse efficiency. After conducting my analysis, I reported to executives and managers that some of the department's employees were missing some employee training sessions which often resulted in lower productivity. 

When I presented some strategies for improvement in the scheduling of training, the department manager disagreed with me during the presentation.
During a break, I talked with him privately and showed him my prior analysis. 

After discussing my approaches and the current practices, and how it would help this eased his concern and gave him a better understanding of how my approaches would support the success of his team.’