The Communications Minister Pat Rabbitte is accusing Stephen Donnelly of ducking-out of the banking inquiry because of the workload.
The Independent Wicklow TD quit as a member of the committee last month insisting that the inquiry had lost its credibility.
His decision followed the appointment of two Senators to the inquiry to ensure the Government had a majority.
Minister Rabbitte has said it was known from day one that the committee was going to reflect the state of the parties.
“I believe that Deputy Donnelly recognised the workload that would have to be undertaken and he took the opportunity to duck-out.”
“As I said in the House, I think Joe Higgins is much better equipped to do the job because he’s not afraid of a bit of work,” said Rabbitte.