CREATE TABLE "managerial_head_coach_changes" (
  "team" text,
  "outgoing_manager" text,
  "manner_of_departure" text,
  "date_of_vacancy" text,
  "incoming_manager" text,
  "date_of_appointment" text
);

Question: when was the next coach appointed after niger tornadoes fired their coach?
SQL: SELECT "date_of_appointment" FROM "managerial_head_coach_changes" WHERE "manner_of_departure"='fired' AND "team"='Niger Tornadoes';

Question: how many managers left sunshine stars?
SQL: SELECT COUNT("outgoing_manager") FROM "managerial_head_coach_changes" WHERE "team"='Sunshine Stars';

Question: how many new managers replaced  manager(s) who resigned? 
SQL: SELECT COUNT("incoming_manager") FROM "managerial_head_coach_changes" WHERE "manner_of_departure"='Resigned';

Question: how many times did tunde abdulrahman leave the team?
SQL: SELECT COUNT("date_of_vacancy") FROM "managerial_head_coach_changes" WHERE "outgoing_manager"='Tunde Abdulrahman';