 Complete the following phrase:  Ewart began his American football career as a college football quarterback for Yale from 1935 to 1937. After college, he continued to work in college football as a backfield coach for Wesleyan University in 1940 and Dartmouth College the following year. In 1946, Ewart began working in the National Football League as a backfield coach for the Philadelphia Eagles. Ewart was promoted to general manager for the Eagles in 1948. After the Eagles won the 