The Three Lions were held to a 1-1 draw in Aubagne, with Cauley Woodrow’s early goal cancelled out in the second half by a lively Korean outfit.
England 1-1 Korea Republic
The Toulon Tournament
Group B
6.30pm, Wednesday 28 May 2014
Stade de Lattre, Aubagne
Live on BT Sport
But England’s destiny still lies in their own hands and they approach their final group match with Colombia in two days knowing that either a win or draw will be enough to take them into Sunday’s third-fourth spot decider.
"We had a fantastic start thanks to a really good passage of pressing and defending, where we forced a mistake and we did that well in the first half," said Southgate after the game.
"But what we didn’t do well enough in the first half was pass the ball and keep possession of the ball.
"We played backwards too many times and put ourselves under pressure, or we played long and didn’t give the man on the ball the simple options.
"In the second half, we used the ball far better and Solly March had a good impact as a substitute, Nathan Redmond was a threat all night and Will Keane linking with Cauley in the last 20 minutes or so proved to be a real handful.
"We finished the game as a really potent attacking force but we should probably have been doing that a bit earlier in the game.
"We defended reasonably well throughout, but just let a really poor goal in and when you do that, the consequence can be that you don’t pick up the win."
With the prospect of facing either host nation France or current Group A leaders Portugal in Sunday’s game, Southgate knows how important that could be as he looks to prepare his side for a likely Euro play-off against such opposition in October.
But he also wants to make sure the workload is spread out among his squad, so admits will take the chance to rotate his line-up again.
"This is a very intense period of games and we wanted to give everybody an opportunity," he added.
"We swapped the squad around tonight and we’ll do that again on Friday.
"And if we get a point, we get a good play-off match against either France or Portugal."