Former England captain Michael Vaughan believes Root may have to call time on Anderson’s international career to progress the team.

Writing in his Telegraph Sport column, he said: “England cannot move on, be a world force with Anderson at the helm. I love watching Jimmy bowl. He is a poet with the ball in hand. He could still be England’s best bowler for another two years.

“Just because you can still perform does not mean you should keep going on and on. The team has to evolve. It is not about sacking Jimmy. It is about what is right for English cricket.”

The big issues facing Root

by Ben Bloom

Sort the opening batsmen 

England’s opening partnerships in this Ashes have been a pitiful 0, 23, 7, 4, 4, 7, 22 and 46. Having already tried two different pairings in Rory Burns and Haseeb Hameed, followed by Hameed and Zak Crawley, they now look likely to go with Burns and Crawley for the final Test. Despite Crawley’s fine 77 in Sydney, there remains significant question marks over all three men, with none of them assured of their place. England have employed 10 different opening batsmen since Alastair Cook’s retirement and the only one to average more than 34 in that position is… Jack Leach.

Commit to a wicketkeeper 

There is a general consensus that Ben Foakes is the finest gloveman in English cricket, yet due to circumstance and misfortune he has played just eight Tests for his country. However, he now appears in line for the role in the upcoming West Indies series. Jos Buttler and Jonny Bairstow average 30 and 37 respectively in Tests as wicketkeepers, but Buttler may well step away from red-ball cricket after a difficult Ashes and Bairstow is more likely to continue solely as a batsman. The last remaining unknown comes in the form of Sam Billings, who may well take the gloves for the final Ashes Test.

Resolve futures of Anderson and Broad 

James Anderson and Stuart Broad are indisputably two of the greatest cricketers England has ever produced and two of the finest pace bowlers in Test history. What is more contentious is whether they should still be going. Over the last five years, Anderson has taken 173 wickets at 21, and Broad 163 wickets at 26. Anderson also tops the England bowling averages in this Ashes, with Broad not far behind. But their ages – 39 and 35 – raise questions of whether their continued inclusion is an impediment to any new era Root might attempt to usher in.

Work out how to use spin 

Attempting to succeed as an English spinner is never the easiest of tasks, brought up on pitches and in a climate that encourages seam. Root has regularly come under fire for seemingly not showing ultimate faith in his spinners and, either by design or inadvertently, encouraging them to bowl primarily as defensive options. For all his troubles with the bat, Mooen Ali fared best of the spinners under Root’s captaincy, taking 97 wickets at 31, while Jack Leach and Dom Bess follow closely behind on bowling averages.

Groom a successor 

Even if Root, who understandably looks increasingly jaded with each passing day in Australia, wanted to relinquish the captaincy, the lack of alternatives gives him little choice but to carry on. Ben Stokes is the only viable option, but is a three-format player, a prized IPL asset, and has only just returned from a mental-health break. The hunt now begins for a successor. Rory Burns and Jos Buttler were options, but their futures in the team are uncertain. Perhaps England and Root will look outside the current Test side to someone like Sam Billings or Tom Abell.