There is no doubt about Jablko's capabilties, or the clear role she can play in cleaning up the loose ends from ANZ's Asian adventure when Mike Smith was at the helm.

But not everyone is a fan of the trend for investment bankers to change financial lanes and pop up in the 'real world' of publicly listed companies - for example our Big Four banks.

"Former investment bankers tend to be crap at most things in the listed world," Bell Potter's head of institutional trading, Angus Aitken, said in an email to clients after Jablko's appointment was announced.

"The only exception to that rule is Chris Mackay and Hamish (Douglas) at Magellan but they are pretty unique.

"Comparing this CFO to Craig Drummond isn't the same. He was one of the top rated and best bank analysts for 20 years then ran JB Were and Merrills. A pure investment banker is vastly different," he said.

Drummond lasted just over two years as NAB's CFO before upgrading to the CEO role at Medibank this year.

Aitken says British clients in particular were amazed that the ANZ hire was an investment banker whose last major deal was advising Slater & Gordon on buying Quindell assets last year for $1.3 billion.

These assets, which nearly busted the ASX-listed legal firm, are now worthless.

ANZ appears to the only one of the Big Four banks to escape the carnage.

Westpac and NAB provided the initial debt for the Quindell acquisition, and the Commonwealth Bank owned up to its troubled exposure to the law firm this month.