CREATE TABLE "managerial_changes" (
  "team" text,
  "outgoing_manager" text,
  "manner_of_departure" text,
  "date_of_vacancy" text,
  "replaced_by" text,
  "date_of_appointment" text,
  "position_in_table" text
);

Question: what is the manner of departure when the date of vacancy is 15 september 2008?
SQL: SELECT "manner_of_departure" FROM "managerial_changes" WHERE "date_of_vacancy"='15 september 2008';

Question: who is the replacement when the team is port vale?
SQL: SELECT "replaced_by" FROM "managerial_changes" WHERE "team"='port vale';

Question: who is the replacement when the team is bournemouth and the outgoing manager is kevin bond?
SQL: SELECT "replaced_by" FROM "managerial_changes" WHERE "team"='bournemouth' AND "outgoing_manager"='kevin bond';

Question: who is the outgoing manager when the manner of departure is contract terminated and the date of vacancy is 1 september 2008?
SQL: SELECT "outgoing_manager" FROM "managerial_changes" WHERE "manner_of_departure"='contract terminated' AND "date_of_vacancy"='1 september 2008';

Question: what is the date of vacancy when the manner of departure is contract terminated, the position in table is 23rd and the date of appointment is 31 december 2008?
SQL: SELECT "date_of_vacancy" FROM "managerial_changes" WHERE "manner_of_departure"='contract terminated' AND "position_in_table"='23rd' AND "date_of_appointment"='31 december 2008';

Question: who is the replacement when the date of vacancy is 1 september 2008?
SQL: SELECT "replaced_by" FROM "managerial_changes" WHERE "date_of_vacancy"='1 september 2008';