Table:
text: 2010–11 Belgian Pro League
During regular season
During regular season
Team Outgoing_manager Manner_of_departure Date_of_vacancy Replaced_by Date_of_appointment Position_in_table
Eupen Danny Ost Resigned 4 September 2010 Ezio Capuano 7 September 2010 16th
Lierse Aimé Anthuenis Sacked 19 September 2010 Eric Van Meir 19 September 2010 15th
Charleroi Jacky Mathijssen Sacked 20 September 2010 (Dutch) László Csaba 23 September 2010 14th
Eupen Ezio Capuano Resigned 24 September 2010 Albert Cartier 24 September 2010 16th
Zulte-Waregem Bart De Roover Sacked 24 October 2010 Hugo Broos 27 October 2010 12th
Germinal Beerschot Glen De Boeck Sacked 29 November 2010 Jacky Mathijssen 2 December 2010 13th
Lierse Eric Van Meir Caretaker replaced 30 December 2010 Trond Sollied 1 January 2011 15th

Question: When was the date of Hugo Broos' appointment to the 2010/11 Belgian Pro League during the regular season?

Question: How many times has outgoing manager Bart de Roover vacated a position in the 2010-11 Belgium professional league during the regular season?

Question: In the 2010/11 Belgian Pro League, who was the outgoing manager of the 15th-ranked team that was sacked during the regular season?

Question: What was the team's position in the table when Danny OST was the outgoing Belgian Pro League manager during the 2010/11 regular season?