Plenty in reserve   It was Celtic's party and we went along to join in the fun. The final league game of the season had arrived, and what a season it has been for both clubs. The champions would be looking to exact some retribution on Inverness following their Scottish Cup exit and fielded a full strength side. John Hughes, who won another award with the football writers manager of the year, was taking no chances that his squad would remain intact and made seven or eight chan