The Denver arrangement fell through .
The league ran the Seals for more than a year until a group headed by San Francisco hotel magnate Melvin Swig bought the team in 1975 with the intention of moving the team to a proposed new arena in San Francisco .
The Denver arrangement fell through , and the league ran the Seals for more than a year until a group headed by San Francisco hotel magnate Melvin Swig bought the team in 1975 with the intention of moving the team to a proposed new arena in San Francisco .