The Tottenham defender says a prime example of that approach was when Southgate left Manchester United’s Luke Shaw out of his squad for the upcoming Nations League finals.
Speaking exclusively to talkSPORT, he said: “He has this nice guy persona and don’t get me wrong that is true, and I can’t speak highly enough of him.
“But he is ruthless at the same time. You may have seen that by leaving Luke Shaw out of the recent [Nations League] squad.
“He’s said that me and Ben [Chilwell] have both been playing really well and deserved the call-up and I agree with him.
“Luke’s had a great season too though and I hope it continues to go well for him, as that’s only going to push me and Ben to do the same.
“Ultimately it’s going to be great for the country if the three of us are pushing each other every step of the way.”
Rose, who admitted in the interview that he was left ’embarrassed’ and ‘angry’ after a unnamed club asked to know if he was ‘crazy’, revealed that Southgate’s No 2 Steve Holland is the more ‘vocal’ out of the pair on the training ground.