When Francesco Guidolin hired to replace Deschamps one of Pastor's first responsibilities was to secure the players who had transformed the club into one of the top clubs in Europe. But he was unable in convincing them to remain and the replacements could not reproduce the previous success. Guidolin was only there for a year and was succeeded by an Assistant coach Laurent Banide who, in turn, lasted only one year prior to being replaced Brazilian Ricardo Gomes. In 2008 after four years with the club that had 6 coaches with only mid-table results Pastor quit the club in the face of harsh criticism of his managerial abilities.
in 2008 Jerome de Bontin, an investor in this club from 2003 assumed the presidency of the club and promised a complete overhaul. As president the club hired players like Park Chu-young, and Freddy Adu, but they were not able to achieve much on the field as they went through a turbulent season that ended with an average finish in the table. De Bontin resigned at the conclusion of the season and was replacing him by banker Etienne Franzi and a brand new directorship.
On July 9, 2009 Ricardo Gomes was replaced by the former Cannes as well as Rennes manager Guy Lacombe, inheriting a young squad that included a number of highly-rated youth players such as Cedric Mongongu Serge Gakpe, Vincent Muratori, Frederic Nimani, Nicolas N'Koulou, Park Cho-young, Yohan Mollo, and Yohann Thuram-Ulien. Lacombe guided Monaco to eighth within Ligue 1 in his first season as coach, however the club was not able to repeat the success during his second season. He was dismissed in January of 2011 which left Monaco at 17th within Ligue 1. He was replaced by the former manager Laurent Banide, who was unsuccessful in turning around the fortunes of the club. Monaco ended their 2010-11 season 18th and was relegated into Ligue 2.
In December of 2011, 66.67 percent from the club were sold off to Russian billionaire and oligarch Dmitry Rybolovlev (via a trust in the name of his daughter Ekaterina's) and the club was at the bottom in Ligue 2. Banide was dismissed because of this slow performance in the first half of the 2011-12 season and became replaced Italian coach Marco Simone. While he managed to lift the club to eighth place by the final stages of the season the board of the club wanted promotion for the coming season, and he was fired and appointed his fellow countryman Claudio Ranieri, whose attacking style of football saw the team score 64 goals during the season 2012-13. While the club lost only 4 times in the season, Monaco was crowned champions at the end of the campaign and earned promotion into Ligue 1. Utilizing Rybolovlev's funding, Monaco were one of the top spenders in Europe in 2013, with a total of PS140 million, with the club's record of PS50 million to Radamel Falcao from Atletico Madrid as well as PS40 million to James Rodriguez from FC Porto. Monaco was ranked 2nd at the top of Ligue 1 in the 2013-14 season. Ranieri took over by Leonardo Jardim. The next year, Monaco cut expenses, selling Rodriguez to Real Madrid for EUR75m and the loan of Falcao for EUR75m to Manchester United. Despite the adulation of the departures, Monaco was third within Ligue 1 and made it to the quarterfinals in the Champions League, defeating Arsenal in the Round of 16 before being eliminated in the face of Juventus. Top scorer from 2013-14 season Anthony Martial, who managed 12 goals across every competition, left for Manchester United in the summer for EUR60m which was the most expensive price paid for a teen in the history of football. Then, along with the sale of Geoffrey Kondogbia, Layvin Kurzawa, Yannick Carrasco, Aymen Abdennour and Lucas Ocampos, among others players, saw the Monegasque club earn more than EUR180m during this transfer window.