 Complete the following phrase:  In the 197475 season, Ipswich finished third in the First Division and were losing semi-finalists in the FA Cup. Suffering from cancer and becoming less able to carry out his duties as chairman, John Cobbold swapped roles with director Patrick Cobbold in 1976. In the 197576 season Ipswich finished sixth of the league, and in October 1976, they signed Paul Mariner from Plymouth for a club record 220,000. The team challenged Liverpool for the First Division title for much of the 197677 season, going top of the table in February 1977 with a 50 defeat of Norwich City in the East Anglian derby. Mariners efforts helped the club to a third-place finish, and the following season, he scored seven goals in the FA Cup as the club won the second major honour in its history, Roger Osborne scoring the winning goal in a 10 victory over Arsenal in the 