Complex sentence: It was not until 1910--11 that the club began to show promise; during that season's tournament they finished above Juventus, Internazionale and Genoa in the "Piedmont-Lombardy-Liguria" section.
Split into simpler sentences: It was not until 1910--11 that the club began to show promise. During that season's tournament, they finished above Juventus, Internazionale and Genoa in the "Piedmont-Lombardy-Liguria" section.