Roberto De Zerbi toasted the perfect day for Tottenham Hotspur new boy Sávio before revealing that he has told the Brazilian winger to hit doubles figures this season.
Spurs completed the £85 million ($116m) signing of Sávio from Manchester City on Tuesday to bring a lengthy pursuit to a satisfactory conclusion and the 22-year-old quickly made himself a hit with fans in a 5-1 thrashing of Charlton in the Carabao Cup.
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Sávio was introduced in the 71st minute and got off the mark for his new club with 82 minutes on the clock with a fizzing low effort into the bottom corner before a side-footed shot three minutes later was deflected in by Ben Davies to round off Tottenham's scoring.
"Yes, it is a perfect day for him," De Zerbi said of Sávio. "I think his biggest step and biggest improvement is to increase the number of goals because as qualities, I think he is one of the best wingers, but the best wingers score many goals.
"I spoke with him and we put the goal on 10 or 12 goals [target] because we need 10 or 12 goals from the wingers.
"Last season we suffered too much because also the number of goals were not enough to compete for nothing more than that [17th] position."
Spurs academy graduate Mikey Moore got the ball rolling with a fine left-footed strike in the 41st-minute to score his second goal for the club.
A loan move to Bundesliga club Cologne was reportedly agreed earlier this month for Moore, and De Zerbi said it is perhaps the best move for the 19-year-old despite an exciting display.
"It is important for him, it is important for us because he is our player from the academy and in this day we have to understand what the best solution is for him and for us," De Zerbi said.
"I would like to keep him because he is young, a good player, but we can't [make] the wrong decision because anyway he needs to play and put games inside of him. With [sporting director] Johan Lange and [CEO[ Vinai [Venkatesham] we have to find the best solution."
After Moore's fine goal, Dominic Solanke marked his first start with a smart 45th-minute finish and Kevin Danso nodded in the third after 67 minutes.
Tottenham are likely to face a much tougher test in the third round, after being drawn against Premier League rivals Liverpool.
PA contributed to this report.