A derby loss is not an ideal preparation for Mohun Bagan Super Giant ahead of their AFC Cup campaign and coach Juan Ferrando on Monday sought some "more time" for their star-studded side to come on their own. Despite boasting a high profile roster, the Indian Super League champions failed to impress, losing to arch-rivals East Bengal 0-1 in a Durand Cup derby on Saturday, ending their eight-match winning streak spanning over four years. "We can't change the past, we try to learn and improve," the Spaniard said in a media interaction ahead of their AFC Cup Preliminary Round 2 match against Macchindra FC of Nepal slated on Wednesday.