"We had all seen it and heard it and felt it," the Liverpool ace told the Mirror. "We all knew that we could be playing and performing better. It is never nice for someone to point that out but everyone deep down knew it within ourselves, too.
"So it was something that we were already thinking about anyway, we knew we needed to be playing better. We had to add that to our performances, some players may have used that as motivation."
When asked whether the criticism prompted Southgate to step down, the 25-year-old added: "I don't know. Everyone has a high expectation with England now and rightly so, it is true of us as players. We feel we should be winning tournaments, that is the goal and standard we have set ourselves. That will be there for the new manager."