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.
Bruce has come under increasing pressure in recent weeks and a large proportion of fans want the 60-year-old to leave the club.
Financier Staveley said: "We have had an extremely busy week reviewing the business and getting to know people and it is imperative that we continue to be patient and considered in our approach.
"Change does not always happen overnight, it demands time and that we follow a carefully considered plan and strategy.
"We met Steve and the players on Monday and have given them the time and space this week to focus on preparing for what is a very important game on Sunday.
"Steve has been very professional in our dealings with him and he and his coaching team will take the team on Sunday.
"If we make any changes going forward, Steve will be the first to know but, in the meantime, we wish him the best of luck in his 1,000th match as a manager and will be joining you [the fans] in getting right behind the team."
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