Lemass also initiated several changes in the cabinet. He is credited with providing a transition phase between the old guard and a new generation of professional politicians. Younger men such as Brian Lenihan, Charles Haughey, Patrick Hillery and Donogh O'Malley were all given their first cabinet portfolios by Lemass, and ministers who joined under de Valera, such as Jack Lynch, Neil Blaney and Kevin Boland were promoted by the new Taoiseach. Similarly, several members of the old guard retired from politics during the Lemass era. By 1965, Frank Aiken was the only de Valera veteran remaining in government, and would become the only founder-member of Fianna Fáil to survive Lemass as a member of the government and the Dáil.