 In 1978 the sponsorship of the team was in Aero hands.After two consecutive seventh places in the first division, Celje was again relegated in the 1978–79 season, came back in 1983–84 season, but was relegated back into the second division the same year.A seven-year crisis occurred, when Celje was struggling even in the second division until the season 1988–89, when they were preparing a new, better team, which would be capable of regaining a position in the first division.