For the Blair memoirs to be a genuine bestseller and pageturner it would help if they answered some of the outstanding questions of his decade in 10 Downing Street. You could write an entire book on those concerning the Iraq invasion – but instead I’ve come up with an alternative list:

1] Which of the current leadership candidates does he prefer? Is it David Miliband, as widely presumed? What is his assessment of the strengths and weaknesses of the shadow foreign secretary? Ditto the other four candidates? If DM, at what point did he identify him as a future party leader and bearer of the New Labour torch? Also, did he have doubts about DM’s commitment to the “Blairite” reform agenda?

2] Did he believe that Gordon Brown was trying to undermine him during the run-up to the Iraq invasion? How committed was GB in private to the process? Did Brown try to rein him back? Did he fear that if the war went badly GB would mount a coup? What role did religion play in Blair’s thought processes?

3] Just how influential was Alastair Campbell (pictured) in government? Did the former head of communications play a key role in reshuffles, big policy decisions and so on? Did Blair ever regret giving him so much influence? Was AC instrumental in the second sacking of Mandelson? How hard did Blair try to keep Mandy in post?

4] Relations between Downing Street and the Treasury. How did things get so bad ? Did Blair feel frustrated that the domestic agenda was in Brown’s hands? What were his feelings in only getting Budget announcements at the last minute? How close did he come to sacking Brown and why did he refuse to? Was this out of weakness or brotherly love?

5] Euro. Why did he believe that entering the single currency was such a great idea and how hard did he fight for it internally? How did he feel when he was frustrated over the issue? Is he still a euro believer?