CREATE TABLE table_67779 ("Year" FLOAT, "Team" CLOB, "Co-Drivers" CLOB, "Class" CLOB, "Laps" FLOAT, "Pos." CLOB, "Class Pos." CLOB)

Who were the co-drivers for the Racing Organisation Course team in years before 2011, who had a position of DNF?
SELECT "Co-Drivers" FROM table_67779 WHERE "Pos." = 'dnf' AND "Year" < '2011' AND "Team" = 'racing organisation course'
SELECT "Co-Drivers" FROM "table_67779" WHERE "Pos." = 'dnf' AND "Team" = 'racing organisation course' AND "Year" < '2011'