You'll get mixed views on this one, but most hiring managers and direct managers actually prefer to see this information from their potential new hires. (rushresume.com)
Why do the ask this questions about your previous direct manager / boss and how to answer this question? (job-interview-site.com)
Prior to hitting submit on your application, find the company you are applying to on LinkedIn and look for the person who might be your most direct manager on the team. (blog.gojobhero.com)