The Dáil's Public Accounts Committee is expected to re-state its demand for Angela Kerins to re-appear before it next week.
Despite her resignation as Chief Executive of Rehab yesterday, the taxpayer's watchdog will likely say she still has questions to answer.
The powerful committee is also expected to consider inviting Martin Callinan back which would allow him be quizzed about his remark that the actions of the Garda whistleblowers were "disgusting" - a remark which remains on the record despite his retirement.
The Public Accounts Committee had scheduled former Rehab CEO Angela Kerins for a hearing this day week.
But there were fears among some committee members that her resignation from Rehab might mean a refusal to answer questions about the pay of senior staff in the group.
The committee will likely reiterate their demand for Miss Kerins to appear next Thursday, as she will still be Chief Executive, serving out her notice.
Separately, the issue of former Garda Commissioner Martin Callinan will also be discussed today, many members of PAC are keen to invite him back and give him the opportunity to withdraw his previous remark that the actions of whistleblowers were "disgusting".