SELECT crew_chief FROM table_name_81 WHERE car_s_ = "chevrolet monte carlo" AND team = "joe gibbs racing" AND primary_sponsor_s_ = "fedex"
Siapakah kepala kru tim Joe Gibbs Racing, yang memiliki Chevrolet Monte Carlo dan FedEx sebagai sponsor utama?
CREATE TABLE table_name_81 (crew_chief VARCHAR, primary_sponsor_s_ VARCHAR, car_s_ VARCHAR, team VARCHAR)