Though perhaps a better problem to have than others experienced by England managers in recent years, the performance presents something of a quandary for Southgate, posing the hard question: should Rashford start over Manchester City's Raheem Sterling?
Southgate was keen to give all his 23-man squad playing time and there were debuts for Liverpool right back Trent Alexander-Arnold, who started before making way for Kieran Trippier, and Burnley goalkeeper Nick Pope, who came on for Jack Butland in the 65th minute.
"Going to this World Cup I think they can beat anyone but a feature of this young, inexperienced team is that they are going to be inconsistent".
"It is up to the manager to decide who is in the best XI for the first game and then for the games after that but I have felt in good form for a long time". "He is a fighter, he is dynamic, he's so good, but he has to improve that".
"I think it's been a relief for him to speak about it, having talked to him today".
Marcus Rashford has told ESPN FC he is better prepared for the World Cup with England than Euro 2016, despite admitting to being frustrated by his lack of regular action for Manchester United last season.
That has created a new atmosphere around the England squad, according to Welbeck, and they are relishing the chance to impress on the worldwide stage. "I'd say so, I just tried to play free today and enjoy myself". "It will always be there because it hurts so much".
"We have got great competition for places throughout the team - you saw that", added the England manager. It was completely different personnel, different qualities on the pitch, but the same idea and following how the boss wants to play. So think it can help.
England's first World Cup match is at 7 pm on Monday 18 June against Tunisia.
Jamie Vardy, on paper perhaps the most in-form of England's forward players, laboured here, perhaps because deep-lying opponents offered little opportunity to showcase his ability to play on the shoulder of the last defender.
"But I have a good record scoring goals for England".
"You can see that a lot of the lads are confident", said Henderson. "Take each game as it comes, and you never know what will happen".