FA Cup season is here, which gives Manchester United a breather from the league schedule. How times have changed. It was once the knockout competition which existed not to provide respite but redemption. That's a distant memory now, but there was a time when Manchester United fans were desperate for this silverware, keen as they were to add to the club's proud but ailing tradition. Between 1967 and 1992, Old Trafford had not seen a league championship, and during this period it was the odd FA Cup that reminded supporters of the taste of sustained glory.