On August 30, 1912, Newton was named honorary coach of the Argonauts, but refused to be paid. In
that season, Newton led the team to an IRFU championship and the team qualified for their second consecutive Grey Cup game. However, the Argonauts lost the
4th Grey Cup to the
Hamilton Alerts. Newton remained with the Argonauts in
1914 where they returned as IRFU champions. The Argonauts faced his former team, Toronto Varsity, in the
6th Grey Cup, where they defeated Varsity 14–2. In
1915, Newton coached for the Sarnia Intermediate
ORFU team. After serving in the
First World War, he coached the
Sarnia Collegiate Institute football team from 1919 to 1920. In their first season in the Senior ORFU, Newton led the Imperials to the ORFU title game, but they were defeated by the Toronto Orphans 6–0. He ceded the head coach position to Milt Burt, but remained with the Imperials in other capacities. Newton was largely responsible for the growth of football in Sarnia which eventually led to the Imperials appearing in three Grey Cup games, winning twice. ==Post playing career==