By winning the 2. liga championship in the 2004/05 season, Most finally gained promotion to the Czech First League, for the 2005/06 season. Extensive reconstruction of the club's stadium – which included the installation of a new pitch, 7,500 seats, and floodlights – was completed in time for the club's first match in the top flight. After a slow start, manager Přemysl Bičovský was dismissed, making way for the arrival of Zdeněk Ščasný. Scasny – a highly regarded manager, who had previously been in charge of Czech clubs AC Sparta Prague and FK Viktoria Žižkov and Greek clubs OFI Crete and Panathinaikos FC – helped the club hold its position in the Czech First League, guiding the team to a respectable 10th place in the table.