Arsenal need to be "open-minded, brave and bold" in their search to replace Arsene Wenger as manager, says chief executive Ivan Gazidis.
The Frenchman will leave the club at the end of the season, bringing to an end his near 22-year reign as manager.
Wenger, 68, won three Premier League titles and seven FA Cups, including the Double in 1998 and 2002.
"You don't find a replacement for Arsene Wenger, you find a new path forward, said Gazidis.
"The process begins today and this club has to rise to the challenge. The most important thing is to make the right appointment - not a quick appointment.
"When Arsene was appointed, I don't think he was on many people's radar. That doesn't mean we have to repeat that but it does mean we have to be bold and get the person we believe is the right person."
BBC Sport understands former Chelsea manager Carlo Ancelotti would be interested in a return to London, while Celtic say they would allow Brendan Rodgers to talk to Arsenal.
Source:BBC