Unwanted paceman Doug Bollinger has warned constant changes have players fearing for their futures instead of focusing on their role in the side.
Bollinger was one of four casualties following Australia's disastrous innings and 71 run loss to England in Adelaide, with Xavier Doherty and Marcus North also dumped from the squad for the Perth Test while Simon Katich is sidelined with an achilles injury.
But while the New South Welshman admits he is shattered over his sacking, he has vowed to fight back with a strong performance for the Blues against Queensland at Blacktown Olympic Park this weekend.
"It is mental because it's hard to know if you're going to be in for a couple of games or not," Bollinger said before completing a net session with the Blues at the SCG on Thursday.
"Obviously you think about it (selection) because you want to do well and you want to take wickets but sometimes you've got to block those (thoughts) out of your mind."
"I'd love to sit around and think about it but I think that's when I start to go pear shaped and I've just got to get back to basics."
A fired-up Bollinger admits it was especially tough to miss out on the chance to take it to the Poms on the bouncy WACA wicket starting on Thursday.
"I'm very disappointed considering I got eight-for there last year and had a good Test match," he lamented.
"But I'm happy to be back with the (NSW) guys and they're going really, really well before Christmas and hopefully I can have a good Shield game starting Saturday against Queensland out in God's country."
"There's not much I can do I've just got to go out for NSW and keep taking wickets and hopefully I get an opportunity when it comes."
"I've got another three or four quicks in front of me, so there's not much I can do. I've just to go out and play cricket and do my best."
"I'm pretty fired up. It's great playing for Australia but as I've said I've just got to do well for NSW and take as many wickets as I can."
Bollinger was also overlooked for the first Ashes Test in Brisbane due to concerns over his lack of match practice after overcoming an abdominal strain suffered in India in October.
But the popular 29-year-old, who took a modest 1-130 from 29 overs in Adelaide, insists any concerns selectors have over his fitness are unjustified.
"I don't think so," he fired when asked if his fitness is an issue.
"I got through Perth Shield game bowling 20 overs in 36 degree heat."
"My pace dropped a bit in Adelaide but that's the way it goes and I've just got to get on top of everything."
He added when asked why he was dropped for the Perth Test: "I think they (selectors) just thought my pace was down a bit and they just want me to keep working on my fitness and just keep trying to do well."
"I don't think it was a surprise. One player's got to miss out ... I'm not going to kick the dirt I'm just going to come back here and do well."