The inquiry hasn't even started and already George Osborne is facing criticism for the cross-party panel into banking, not so much for who is on the panel but more for who isn't on the panel.

Here are some of the MPs who have been overlooked:

John Mann (Labour)

The noticeably outspoken MP was clearly disappointed about not being invited to take part in the banking inquiry. So much so that he announced on Twitter that he will be setting up his own banking inquiry.

Mann’s omission from Tyrie’s committee was met with some mixed reactions from Twitter today:

@driftsight: John Mann just insults his victim. there is nothing forensic about him, just ideology so never find out what went wrong. Typical posturing

@jameschappers: John Mann on his/Leadsom's exclusion from #bankinginquiry 'Because we're too outspoken we've been blocked. Total whitewash' Hard to disagree

Mann famously filed a Freedom of Information request for emails between Barclays and the Bank of England and scolded the Bank’s deputy governor Paul Tucker for not releasing the emails before Bob Diamond’s evidence.

Like most people in a bit of a huff, he tweeted: “New finance committee is a total joke” and that “Tyrie had already reached his conclusions before he whitewashed libor scandal”.

He branded the inquiry a “whitewash” and alleged that he and Leadsom were deliberately left out because both were “outspoken on banking”.

George Osborne has since defended the panel and denied that there was a whitewash and BBC’s political correspondent Carole Walker has since tweeted that Ed Balls has denied vetoing Mann from sitting on the inquiry.

Andrea Leadsom (Conservative)

Described by Conservative Home as “ferociously brilliant”, Leadsom gave Tucker a telling off for not keeping records of phone calls at his evidence to the Treasury committee. She also asked Osborne to apologise to Ed Balls for trying to link him to the Libor scandal (“He has impugned my integrity!”).

Leadsom has had an impressive career in finance spanning more than 20 years. She worked at Barclays as financial institutions director and also worked with the Bank of England governor Eddie George over the weekend that Barings collapsed.

Like Mann, Leadsom was allegedly left off the panel because she was outspoken on banking issues and has admitted in public that the Treasury committee were “useless” in trying to get information out of Diamond.

Mann who continued to vent his fury on Twitter also questioned the lack of women in the banking inquiry and said that he would have happily stepped aside to allow either Leadsom or Teresa Pearce to sit on the panel.

Her omission has caused some to scratch their heads, and observers have hinted that Leadsom is in line for promotion in a possible cabinet reshuffle. Others point out that her rebellion over the EU referendum motion is what worked against her.

Since the announcement Leadsom has tweeted: “Andrew Tyrie will do an excellent job with the joint committee. I have no doubts at all.”

Jesse Norman (Conservative)

Norman hasn’t been in Cameron’s good books following reports that he was “jabbed in the face” for leading this week’s backbench rebellion on House of Lords reform.

The former Barclays director left the City in 1997 and later he worked as a policy adviser to the then shadow Chancellor Osborne and also advised Boris Johnson on his Mayor of London campaign.

He recently hit back at criticisms from The Guardian, which criticised his performance during Diamond’s grilling at the Treasury select committee, alleging that Diamond was chummy with Norman who was aware of the MP’s background in Barclays.

Michael Fallon (Conservative)

Fallon is another MP who has had extensive experience in business and finance. The former minister and now deputy chairman of the Conservative Party was director of three companies including one founded by Duncan Bannatyne from Dragons Den.

Fallon has on several occasions declared an interest as non-executive director of Tullett Prebon plc, which deals with inter-dealing broking. The firm which dominates the rates market has been asked to co-operate with the Financial Services Authority’s investigation into malpractice in the City.

The firm is not under investigation by the FSA but is responding to requests for information over Libor.

Fallon has since hit back at claims that Tullett Prebon is involved with the rate-fixing scandal and insisted that Tullett “provided the information that has helped nail the banks".

He is unlikely to have made the panel anyway, given his role as party deputy chairman.

David Ruffley (Conservative)

The former corporate lawyer from Clifford Chance (the world’s largest law firm) read out that infamous “Dear Marcus” letter during Agius’ grilling at the Treasury select committee and ended his questioning with “What do you say to people who say you’re not good at your job?”

Ruffley was also a former special advisor to Ken Clarke when he was Chancellor and also campaigned for Fred Goodwin to be stripped of his knighthood. He was also an economic consultant to the Conservative Party and according to his biography on the Conservative Party website: “he earned a national reputation as an effective critic of Gordon Brown's Budgets and scrutineer of the Bank of England.”

But like Norman, Ruffley also has a black mark to his name having also led the rebellion on Lords reform.

Tags: Banking inquiry, Libor