 Complete the following phrase:  As a big-league manager, Johnson led three different teams over eight seasons. His career began when he succeeded Eddie Kasko following the conclusion of the Red Soxs 1973 campaign on September 30. His biggest success came during his Red Sox posting when he compiled a win-loss record of 220188 for a .539 winning percentage. He guided Boston to a 9565 .594 mark in and a first-place finish in the AL East. The Sox then swept the defending world champion Oakland Athletics in the 