Michael Vaughan believes England's risky batting was a huge mistake following their emphatic eight-wicket defeat to Australia in Perth.
The Three Lions struggled against the hosts, who were inspired by a stunning 123 from Travis Head as they took control of the series.
England's second innings lasted just 34.4 overs, with big names such as Joe Root and Ben Stokes struggling to make an impact.
They were eventually bowled out for just 164, with Australia building on their impressive bowling display with an equally remarkable innings with the bat.
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And Vaughan, speaking on BBC Radio 5 Live, believes England's big mistake was attempting too many big shots - rather than playing it safe.
He said: "I'm flat because it was only five hours ago that England were in control. The pitch was doing a bit, Australia were bowling quite nicely.
"If you look back to the 2023 series, the mistakes that were made there, fast forward to last summer against India.
England's risky approach with the bat failed to pay off in their Ashes Test match with Australia
|GETTY
"From a position of dominance, today to lose nine wickets in that middle session and to lose wickets off big drives from big players, the same mistake two years later.
"Are we learning? This England side at the worst possible time, with the perfect team for these conditions, made the same mistakes.
"The batting in the first innings wasn't good enough and it was the same mistakes from two years ago. The outfields here are so big, you just hit it into the gaps and run for ones and two.
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Five things to know about The Ashes | PA"Primarily, the batting line-up have gone out there and played baseball. There's no Cummins or Hazlewood, perfect conditions and the batters have gone out there and let the team down."
England now have plenty of work to do if they're to turn things around.
And captain Ben Stokes admitted he was 'shellshocked' following the result, while also praising Head for his remarkable and game-changing century.
"A little shellshocked at the moment. That innings from Travis Head was pretty phenomenal," he said.
"It's quite raw, and fresh, at the moment but geez that was some knock. The way it eked out, the guys who had success there with the bat in hand were the guys who seemed to take the game on.
"If we look back on that it looked like you should never think you have enough. I think if you find yourself in the position of the guy who got in try to give yourself the best chance of going on.
Ben Stokes wants England to bounce back following their Ashes defeat to Australia
| GETTY"Anyone who tried to stay around, and occupy the crease didn't have too much success.
"The knock from Travis knocked the wind out of us. We tried three or four different plans to Travis Head but when he's going like a train he's very hard to stop.
"The guys who found success looked to take the bowlers on, take on their best ball.
"There was certainly a lot of assistance there when the bowlers put it in the right area. The guys who were brave enough to knock the bowlers of their length seemed to find their success.
"A lot happened on day one. A good day for the bowlers. But this is a tough one to start with given we felt in control of the game.
"We have four more games here. We have to let this sink in. It's hurting at the moment but we have to get our head round it and get to Brisbane. We have a long time before that game starts and put the hard graft for Brisbane."