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

Question: What team hired Renato Gaúcho?
SQL: SELECT "team" FROM "managerial_changes" WHERE "replaced_by"='Renato Gaúcho';

Question: How many times did Silas leave as a team manager?
SQL: SELECT COUNT("manner_of_departure") FROM "managerial_changes" WHERE "outgoing_manager"='Silas';

Question: Why did Geninho leave as manager?
SQL: SELECT "manner_of_departure" FROM "managerial_changes" WHERE "outgoing_manager"='Geninho';

Question: Who was the new Santos manager?
SQL: SELECT "replaced_by" FROM "managerial_changes" WHERE "team"='Santos';

Question: Who was replaced as manager on June 20?
SQL: SELECT "outgoing_manager" FROM "managerial_changes" WHERE "date_of_appointment"='June 20';