Phill Neville has reiterated he has the backing of the Football Association, despite England's questionable form.
Neville's side has won only three of their last 10 games, and play Spain in their final game of the 2020 SheBelieves Cup campaign.
Though winners of the competition last year, the Lionesses finished fourth in the Women's World Cup and fell to defeat against Brazil and Norway in friendly matches.
"I will know myself if it is not working," said the 43-year-old.
"I will know if it's time to go and [the FA] know I'm that type of person."
England opened their 2020 SheBelieves Cup with a 2-0 loss to host the United States, before winning their second game 1-0 against Japan thanks to a late winner from Ellen White.
Neville said it was "really important" to have the backing of the FA, adding: "If they start wobbling, then it's time to change and to look elsewhere.
"You have to look beyond the criticism. I own a football club myself and I think it's important to give support to the manager.
"Stability is the key to success and I am lucky I have that from the people I work for. There is a real balance and acceptability that we have to improve but [the FA] know the journey we are going on."
The Lionesses, who are defending the trophy, face Spain in their final game.
Though now unlikely, England can retain the cup if they beat Spain by four or more goals, and hope the USA lose to Japan.
The team with the highest points after playing the other three teams will win the competition, however, if two teams are level on points, then goal difference will determine the winner before goals scored and head-to-head results.
The 43-year-old says the win against Japan has boosted "confidence and relief" in the squad but feels "we still have a long way to go".
"Ultimately, it was only Japan, and the Spain test will be like playing against one of the top five teams in the world, which will give us a better gauge than the Japan game," he added.News Now - Sport News