CHIEF executive Andy Ambler says the process of appointing a successor to Steve Lomas will begin in earnest at the start of next week.
The Lions board took a patient approach to replacing Kenny Jackett in the summer but know time is a luxury they cannot afford halfway through the season.
So the process of whittling down the list of applicants will begin first thing on Monday.
"Next week we will be narrowing things down as much as we can," Ambler said.
"We have been inundated with people wanting to be considered, as we were last time, and we will wait until after the weekend to collate that information and come up with a shortlist.
"We've got less time to make this appointment but there are other people who are out there now who weren't available in the summer, which is natural.
"There may be people looking from afar who realise that this isn't such a bad job after all."
Ambler says caretaker duo Neil Harris and Scott Fitzgerald are not in the running.
"Neil and Scott have said to us that they don't want to be considered at this time," he said.
"They are a safe pair of hands because they know what it means to wear the shirt. That is why we've put them in place for the next two or three games.
"They carry out important roles for the club and are both important assets. It would be too soon for Neil in particular to be Millwall manager."
Mick Harford will continue to oversee the club's scouting despite Lomas' departure but there is a question mark over the future of first team coach Tim Breacker.