Black, who served as assistant to former manager Steve Kean for two years, admitted that there are other applicants who are "more illustrious" than him.
"I've always felt I could do a number one job. Opportunities haven't arisen for that to happen," he told BBC Sport.
"I was happy working as Steve Bruce's assistant for a long time [at Birmingham, Wigan and Sunderland] and the opportunity never arose. Perhaps this one has.
"There are quite a few applicants for this job who are more illustrious than I am. I know it's an exceptionally good job at a good club."