The pace bowler has claimed over 300 dismissals in 71 five-day games with an average of 22.10.
Australia's chief selector Bailey has declared that captain Pat Cummins will play a "major part" in the forthcoming England-Australia contest.
Speculation had been growing that the 32-year-old might sit out due to a ongoing back issue that was still troubling him.
Earlier indications from the Australian camp suggested no final decision had been made regarding Cummins' participation, with the extended contest kicking off on November 21 in Perth.
Bailey expressed that the captain is progressing and was "optimistic" about the likelihood of taking part.
"We're aware that time is getting short and there are permutations at play, aside from the back issue, but additional elements," he commented.
"The outlook is good. There's strong faith that he will feature a key capacity. With luck starting in Perth. If not, then we'll pick it up."
Injury History
Cummins was ruled out the ODI and T20 games against India and New Zealand in the previous weeks after medical tests showed a lower back issue.
There is a track record of spinal problems, with recurrences in several earlier campaigns forcing him out of three Australian summers in four years.
The bowler mentioned he would be bold in recovery efforts in his comeback strategy to ensure his availability for the Ashes.
He mentioned that he did not know if Cummins had begun bowling as part of his rehabilitation but conceded it was "getting tight" for him to be fit for the opener.
Contingency Plans
If he's unavailable, former captain Steve Smith will lead the side.
All-rounder Cameron Green was excluded lately from the ODI lineup for their ODI contests against the Asian giants as a safety move because of discomfort in his torso.
He labeled it as a "slight concern and confirmed that Green will play in the state-level matches, so will be "ideally positioned to resume bowling."
"Extensive planning has gone into developing the strategy for him to take part for the first Test as an dual-role player," Bailey explained.
"His involvement was limited to the first two ODIs in any case. The way he swings the willow in shorter formats, should it hinder progress for 24 more hours, we opted to approach this more conservatively."
Series Schedule
The Ashes: Australia v England
Spanning from late 2025 to early 2026