Complex sentence: Celtic continued to gather trophies throughout the 1920s and in the mid- 1930s Maley built his third great team--featuring such prize entertainers as Jimmy Delaney, McGrory and Buchan--a stylish side who won the league title in 1936 and 1938 and the cup in 1937.
Split into simpler sentences: Celtic continued to gather trophies throughout the 1920s and in the mid- 1930s Maley built his third great team, featuring Jimmy Delaney and Jimmy McGrory. This side won the league title in 1936 and 1938 and the cup in 1937.