CREATE TABLE table_14346353_1 (directed_by VARCHAR, teleplay_by VARCHAR, series__number VARCHAR)

Who directed series #4 that was teleplayed by David Simon?
SELECT COUNT(directed_by) FROM table_14346353_1 WHERE teleplay_by = "David Simon" AND series__number = 4
SELECT COUNT("directed_by") FROM "table_14346353_1" WHERE "David Simon" = "teleplay_by" AND "series__number" = 4