A few weeks later in December 1948 Tommy Walker left during his third season at Chelsea to return to Hearts. He took the role of player-assistant to manager McLean. McLean's intention was that Walker would be a steadying influence in a developing young team. However, after a single appearance at right-half in a 1–0 home defeat by Dundee, Walker retired to concentrate fully on learning the managerial ropes. Tangible progress was made in the League Championship in 1949–50 when Hearts finished third. As Tommy Walker had become more influential, McLean was co-opted to the Board on 16 March 1950.