The Australians host China at Adelaide Oval on Thursday night in new manager Tony Popovic's first game at the helm of the national team.
Popovic replaced long-time coach Graham Arnold, who resigned on September 20.
"It's always, I guess, an interesting time and probably somewhat an unnerving time when there's a change in coach from a player's perspective because you never know what's going to happen," Goodwin told reporters on Monday.
"But it's something that I've been accustomed to now throughout my career, being a bit more experienced.
"Arnie's departure, it's one of those ones where it's obviously a new coach coming in, fresh faces,.
"Everyone just has to look at it as kind of a fresh start and a fresh perspective ... it's going to be fresh opportunities for players.
"You really have got to try and refocus and re-evaluate the individual effort that you're putting in and making sure that you're at the right level and that's going to happen over the next few days."
New Austrailan football coach Tony Popovic. (Bianca De Marchi/AAP PHOTOS)
Arnold, who held the job since 2018, quit after two disappointing Australian results - a scoreless away draw in Indonesia and a shock 0-1 loss to Bahrain on the Gold Coast last month.
Those results to open the third phase of qualifying for the 2026 World Cup in Canada, Mexico and the United States jeopardise Australia's prospects of direct qualification.
Australia sit in fifth spot in the six-nation group with just one point ahead of the home fixture against China and an away game against Japan on October 15.
China have yet to get a point in the current phase while Japan (six points) top the group.
The top two nations at the end of the group phase secure a spot at the '26 Â World Cup with the third-placed country pitched into another qualifying phase.
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