His Leicester side had to ride their luck at times against West Ham, but victory for a smiling Ruud van Nistelrooy has already given Foxes fans their "belief" back.
The Dutchman was appointed on Friday to replace Steve Cooper, who was sacked after just 12 Premier League matches in charge of Leicester.
Van Nistelrooy watched his new side fall to a 4-1 thumping by Brentford alongside Leicester owner Aiyawatt Srivaddhanaprabha from the stands on Sunday.
However, his first game in charge got off to the perfect start on Tuesday as Jamie Vardy's early opener helped the Foxes on their way to a 3-1 win at King Power Stadium.