The Cubs of the 1930s were contenders nearly every year, winning four pennants (if you include the cusp-of-the-30s 1929 team).
Pat Malone was a solid rotation starter for the Cubs from 1928-34, having his best years in 1929 and 1930 when he was a 20-game winner both seasons. In ‘29 he finished 19th in N.L. MVP voting.
There was talk throughout Malone’s career that he liked the nightlife a little too much and might have had an alcohol problem. He’d had some run-ins with manager Charlie Grimm through the 1934 season, but on a warm August afternoon at Wrigley Field that year, Malone pitched the game of his life.