The former Chairman of the Central Remedial Clinic says the controversial pay off to Paul Kiely saved the organisation around 1.4 million euro.
Hamilton Goulding, whose mother founded the CRC, says he had tried to cut Mr Kiely's 240 thousand euro a year CEO salary, but was told he couldn't.
In an interview in The Irish Daily Mail, he says then agreed an early retirement package for Paul Kiely and hired a successor on a lower salary to save the Clinic money in the long term.
Mr Goulding explains how the pay-out figure was decided: