What might have been; what should have been. Leeds remain unbeaten three games into the season, but they will rue not departing the south coast with another win to add to their impressive start to the Premier League campaign. They certainly had chances. By the time Brighton finally woke up with around half an hour remaining, Bart Verbruggen would have been wondering how on earth his goal had only once been breached, so great was Leeds’ dominance and so bullied had his side been. Yet, aside from…