Barclays announced that Group Finance Director Chris Lucas and Group General Counsel Mark Harding have decided to step down, marking the latest changes as the bank continues to pick up the pieces amid a series of scandals.

Barclays Chief Executive Officer Antony Jenkins said Lucas and Harding announced late last year their plans to leave. “Their decision to retire was theirs alone,” said Jenkins.

Both have agreed to remain in their roles until their successors have been appointed and an appropriate handover completed. The bank said that a search for these appointments is underway, but it's expected the process will take a “considerable time to complete.”

The bank is currently being investigated by the U.K. Serious Fraud Office over allegations that Barclays loaned money to Qatar Holding so that the sovereign investor could buy shares in the bank as part of a June 2008 fundraising effort. British rules prohibit public companies from giving financial assistance to acquire their shares. The investigation comes alongside a separate probe by the Financial Services Authority against Barclays for similar charges.

Jenkins, who is attempting to put the bank's woes behind it, said: “Barclays is at an inflection point in our journey toward becoming the ‘go-to' bank,” which plans to shortly unveil the outcome of its strategic review. “The execution of our change program will take place over the next 5 to 10 years,” he said.

In June 2012, Barclays was fined $450 million in connection with the LIBOR trading scandal. That ultimately led to the departures of former Chief Executive Bob Diamond, Chairman Marcus Agius and Chief Operating Officer Jerry del Missier last year.