2009–10 Eredivisie
Team Outgoing manager Manner of departure Date of vacancy Replaced by Date of appointment
Ajax Marco van Basten Resigned Pre-season Martin Jol 25 May 2009
AZ Louis van Gaal Signed by Bayern Munich Pre-season Ronald Koeman 17 May 2009
AZ Ronald Koeman Sacked 5 December 2009 Dick Advocaat 8 December 2009
Heerenveen Trond Sollied Sacked 1 September 2009 Jan de Jonge 2 September 2009
Heerenveen Jan de Jonge Resigned Jan Everse
Heracles Almelo Gert Heerkes Resigned Pre-season Gertjan Verbeek 8 June 2009
NEC Mario Been Signed by Feyenoord Pre-season Dwight Lodeweges 9 April 2009
NEC Dwight Lodeweges Resigned 27 October 2009 Wiljan Vloet 14 November 2009
PSV Dwight Lodeweges Signed by NEC Pre-season Fred Rutten 17 April 2009
Sparta Rotterdam Foeke Booy Signed by Utrecht Pre-season Frans Adelaar 15 May 2009
Sparta Rotterdam Frans Adelaar Sacked Aad de Mos
ADO Den Haag Raymond Atteveld Sacked Maurice Steijn 30 March 2010
Willem II Alfons Groenendijk Sacked Arno Pijpers 27 February 2010
Willem II Arno Pijpers Resigned Theo de Jong
Overview -- Managerial changes
The Eredivisie 2009-10 was the 54th season of Eredivisie since its establishment in 1955. AZ were the reigning champions. A total of 18 teams is taking part in the league, consisting of 16 who competed in the previous season and two promoted from the Eerste Divisie. The teams promoted from the Eerste Divisie at the end of the previous season were champions VVV Venlo, and promotion/relegation play-off winners RKC Waalwijk. The season started on 31 July 2009 and ended on 2 May 2010. FC Twente won their first ever Eredivisie title. During the halfway break PSV Eindhoven had been evenly matched with Twente, however towards the end AFC Ajax had climbed up the table with remarkable wins and many goals scored, taken second from PSV Eindhoven, and PSV's falter landed them in third.