Steve Bruce will stay in charge of Newcastle for their Premier League game against Tottenham on Sunday following the club's £305m takeover.
New part-owner Amanda Staveley said the club wanted to be "patient and considered" in their approach and that "change doesn't happen overnight".
Staveley said Bruce, who will celebrate his 1,000th game as a manager, will be the "first to know" if things change.
Newcastle are winless this season and second bottom in the league.
A Saudi Arabian-backed takeover of the club was completed last week, bringing to an end Mike Ashley's 14-year spell as Magpies owner.