We apologize for the loss.
The venue is in Australia on Tuesday, 4 January.
Ball-by-ball Test Match Special commentary is available on the radio and on the internet. Text commentary on the website.
"Anything will be on the table" when England review their loss in Australia, says Giles.
England's poor tour has led to a debate about the future of coach Chris Silverwood and captain Joe Root as well as the state of the national game.
Giles said that "systemic change" is needed.
The former England spinner said that unless we look at more systemic change, a collective responsibility, and collective solutions, we can make whatever changes you want.
We're only setting up future leaders for failure, so you can change me, we can change the head coach and captain, but we're only changing them for failure. We only do that. It is only pushing it down the road.
The third Test was England's ninth defeat in 12 Tests and they surrendered the urn.
Ed Smith was removed from the role of national selector and Silverwood was added to the role of head coach.
Giles defended the decision to change from the norm after England's loss to Australia.
Giles said that one of the criticisms he had was a lack of innovation.
We're talking about going back to a system that's been around for about 150 years.
What other sports have a person sitting on the outside telling the head coach what to do?
It's a performance game and you build relationships. The head coach can still have a good relationship in the dressing room. We've been accused of being too soft in the past.
I don't agree with that.
Chris Silverwood has been the England coach since the beginning of the year.
England began the year by winning 2-0 in Sri Lanka, but were beaten in India, New Zealand and India before the fifth Test against India was called off.
They started the series with the aim of winning the series in Australia for the second time in 34 years, but were defeated in just 12 days.
Giles said that he felt the responsibility of losing the series. Absolutely. We all do. There will be a lot of emotion and anger about how we lost it, and we can only apologize.
It's not an easy place to come. There's been more going on in the last two years than just performance.
Giles said the players had been extraordinary in getting the game on. He said that the amount of time spent in bio-secure bubbles is not healthy.
He said that performance has been the last thing on his mind.
How much time have we spent thinking strategically? Not a lot. Have we got the game on? Have we tried to keep the players fit? We tried. The wellbeing issue is massive.
Giles said that the England and Wales Cricket Board needs to look at the men's Test side's failures internally.
The structure of the domestic season, where white-ball tournaments are played at the height of the summer and the County Championship pushed to the early and late season, has been blamed.
Giles wondered if the conditions in the game would allow us to better prepare our cricketers to play in these conditions. I'm not sure what we play at the moment. That is a collective responsibility. It's up to us, but also a conversation with the counties.
We will review the tour.
Everything will be on the table. We've got two Tests left, the series might be lost, but we have two matches we can make an impact on.
