 Complete the following phrase:  Ranjbar began his coaching career as manager of Iran national under-20 football team in 1968. He was selected as assistant coach of the national football team in 1970 and was again selected as this position in 1971 by Parviz Dehdari. After Dehdaris resignation in 1972, Ranjbar was appointed as caretaker manager of the national team, which he led to the final victory in 