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: Name the replaced by for 8 july 2009
SQL: SELECT "replaced_by" FROM "managerial_changes" WHERE "date_of_appointment"='8 July 2009';

Question: Name the total number of replaced by for 13 june 2009
SQL: SELECT COUNT("replaced_by") FROM "managerial_changes" WHERE "date_of_appointment"='13 June 2009';

Question: Name the date of vacancy for manuel pellegrini
SQL: SELECT "date_of_vacancy" FROM "managerial_changes" WHERE "outgoing_manager"='Manuel Pellegrini';