CREATE TABLE table_16201038_4 (last_5_meetings VARCHAR, overall_record VARCHAR)

How many times did the team achieve an overrall record of mu, 21-19?
SELECT COUNT(last_5_meetings) FROM table_16201038_4 WHERE overall_record = "MU, 21-19"
SELECT COUNT("last_5_meetings") FROM "table_16201038_4" WHERE "MU, 21-19" = "overall_record"