Sherwood has recalled a chat he had with Manchester United legend Fergie after he took the plunge.
The 51-year-old told the Daily Mail: "I spoke to him. He told me, 'You play two games a week as a manager — one is the press conference and the other is a football match. Sometimes it's just as important to win the conference as it is the match'.
"He was right. But I didn't grasp that one."