Who directed the episode written by Lamont Ferrell?
CREATE TABLE "table1_11630008_5" (
  "series_num" real,
  "season_num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" real
);
SELECT "directed_by" FROM "table1_11630008_5" WHERE "written_by"='Lamont Ferrell';