Coach Trevor Bayliss admits he had a "fairly stern chat" with England's players after they rallied to avoid an embarrassing Test defeat to Ireland.
England were bowled out for 85 in the first session of their inaugural match against Ireland at Lord's but eventually won by 143 runs after dismissing the visitors for just 38 in their second innings.
Nightwatchman Jack Leach was England's top-scorer with 92 and although he was left out of the 14-man Ashes squad, Bayliss praised the left-arm spinner's approach.
"We had a fairly stern chat after the game," Bayliss told BBC Radio Five Live's Sportsweek programme.
"It's good to be able to deliver those messages when you have actually won a game.
"I thought the example Jack Leach showed was the example a lot of the other batters need to learn from. He was very focused on what he wanted to do and was very clear in his own mind how he was going to go about it.
"We speak about that a lot, having a plan for any situation you find yourself in and being clear with your thoughts, don't try and just bluff your way through it."
England begin their Ashes Test preparations with an optional training session on Monday at Edgbaston, where the fitness of paceman Jofra Archer will be assessed following the side strain he suffered during the victorious World Cup campaign.
"We don't want to necessarily risk him," Bayliss added.
"He played for Sussex in a T20 match and came through that well. Test match cricket, five days, longer spells is a little bit of a different beast so we'll have to see where he's at and take a little bit from the medical people as well.
"We have to weigh up do you pick him for the first one, it's a bit early, he gets injured and then is unavailable for selection.
"We've got a good strong group of bowlers who we think can do the job over the five Tests."