Southgate's men are now set to go head-to-head with Croatia and Spain in the upcoming global break. I feel as if there's still a chance to improve what we're doing.
"We know it's not straightforward". Jadon has had a similar impact for Dortmund in big matches. You shouldn't duck that challenge.
"We'd like to work with them now - they get an understanding of how we work, we get a closer look at them. But inherently care about the project in a way that maybe would be hard to find in something else".
Along with the usual suspects, there is a light smattering of exciting new inclusions - with Southgate handing first senior call-ups to Leicester City tyro James Maddison, 21, and Chelsea youngling Mason Mount, 19, who is playing well on loan at Derby County at the moment.
However, Southgate recalled the time nine years ago when former FA chairman Greg Dyke installed a countdown clock to 2022 in a left-field bid to inspire England to win the tournament.
"Where actually if you don't have a target like that... we started to work back from there. The board have been fantastic for the freedom to bring young players through".
Mahrez misses penalty kick as Liverpool, Man City draw
Aguero is City's usual penalty-taker, but he had been substituted, leading to an on-field discussion as to who would take it. Milner has become a key cog in Liverpool's system this season, and has started all but one Premier League match this season.
'That got a lot of publicity but what it did was shape our thinking, for [outgoing technical director] Dan Ashworth and myself, ' he added.
Sancho epitomises that pursuit of progress.
"Well, it is (a big call) but I think it aligns with what we've done over the last 18 months, really", the Three Lions boss said. "He's been fearless enough to go overseas and play", added Southgate. "This city lives and breathes football like no other, and at Borussia Dortmund, young players are given a shot".
Since his move from Norwich City for £20 million, the 21-year-old has been in fine form for the Foxes, having bagged three goals and two assists for the side so far.
"With Jadon, I think we would be putting him in the squad regardless of injuries", Southgate told BBC Radio 5 Live. He is a little bit of a later developer in that area. I think it's to be cherished.
"It's been a fearless decision by him to play in the Bundesliga, but he is playing in front of big support every week".