Original sentence: Lawson began his pro career with the NHL Detroit Red Wings where he spent two seasons before being traded to Minnesota and then Buffalo.While having had a five-year career in the NHL  under his belt he had been used in predominatly a defensive role, shadowing the other teams' offensive stars, and it was not until Danny Lawson jumped to the upstart WHA in 1971 that his scoring abilities were fully realized
Edited sentence: Danny Lawson began his pro career with the NHL Detroit Red Wings where he spent two seasons before being traded to Minnesota and then Buffalo.It was not until Lawson jumped to the upstart WHA in 1971 that his scoring abilities were fully realized.While having had a five-year career in the NHL  under his belt, despite glimpses of the offensive ability shown as a junior, he had been utilized predominately in a defensive role, shadowing the other teams' offensive stars