The Football Association of Ireland (FAI) hopes to appoint a permanent Republic of Ireland manager before Christmas but interim manager Noel King will not be considered for the role.
The chief executive of the FAI, John Delaney, revealed that the association's aim was to have a new manager in place "this side of Christmas" in order to enter into the new year with "hope" and "optimism".
"The ambition is to have an appointment this side of Christmas, to have everything done an dusted by then. That's our clear objective," Delaney told RTE.
"Having a new manager in place will ensure that we approach the new year with greater hope and optimism ahead of the draw for the Euro 2016 qualifiers in February.
"However if the right person becomes available, but they can't start until a certain time, then that's the way it will be played out."
Ireland Under-21 manager Noel King will temporarily take charge of the Boys in Green for the final World Cup qualification games against Germany and Kazakhstan on October 11 and 15.
However, Delaney dismissed the suggestion that the 57-year-old might be considered for a permanent role.
"Noel has stepped in at the right time for us, but he knows that he won't be considered for the job going forward," said the FAI chief.
"However, he has approached the role of interim boss with great professionalism and is looking to forward to the upcoming games.
"First up is the game against Germany and they don't get much tougher than that.
"He has done great work for us at U21 level and coaching at all other levels and has been a great ambassador for the FAI."