Table:
text: 2008–09 Süper Lig
Managerial changes
Managerial changes
Team Outgoing_manager Manner_of_departure Date_of_vacancy Replaced_by Date_of_appointment
Bursaspor Samet Aybaba Resigned 4 November 2008 Güvenç Kurtar 4 November 2008
Ankaragücü Ünal Karaman Resigned 8 December 2008 Hakan Kutlu 2 January 2009
Bursaspor Güvenç Kurtar Resigned 23 December 2008 Ertuğrul Sağlam 2 January 2009
Kocaelispor Yılmaz Vural Resigned 29 December 2008 Erhan Altın 17 January 2009
Denizlispor Ümit Kayıhan Sacked 5 February 2009 Mesut Bakkal 6 February 2009
Galatasaray Michael Skibbe Sacked 23 February 2009 Bülent Korkmaz 23 February 2009
Hacettepe Erdoğan Arıca Resigned 2 March 2009 Ergün Penbe 2 March 2009
Gaziantepspor Nurullah Sağlam Resigned 9 March 2009 José Couceiro 6 April 2009[ citation needed ]
Konyaspor Giray Bulak Sacked 19 May 2009 Ünal Karaman 20 May 2009[ citation needed ]

Question: What will be replaced by when outgoing manager "Ünal Karaman" is among the 2008-09 Süper Lig managerial changes?

Question: What is the appointment date of the Süper Lig leadership changes 2008-09 when the outgoing manager of Giray is Bulak?

Question: What will be replaced by if the date of the vacancy is "23 February 2009" for the 2008/09 Süper Lig leadership changes?