Original sentence: A period of decline then followed, despite the performances of Willie Mailey in goal, and the side's fortunes reached a nadir when the club finished bottom of the Northern Premier League in 1979, a year when the stronger teams from the division formed the national Alliance Premier League (now known as the Conference)
Edited sentence: A period of decline then followed, despite heroic performances by the great Willie Mailey in goal, and the side's fortunes reached a nadir when the club finished bottom of the Northern Premier League in 1979, a year when the stronger teams from the division formed the national Alliance Premier League (now known as the Conference)