"Keith Burkinshaw was terrific for me," Boothroyd said on Three Counties Radio.
"As time went on his role became less and I was the one making the decisions, both good and bad.
"The bottom line is I'm the manager. I'll live and die on my own two feet.
"My opinion is that I can get someone in to hold my hand and to cry on their shoulder.
"But I've thought a great deal about this and taken advice from the person I consider to be the best in the world."