Celtic will hope for a better outcome next time round in the Champions League following a difficult group stage campaign this term. Brendan Rodgers’ men gained four points from Group E, with a last-gasp victory over Feyenoord and a stirring draw against Atletico Madrid providing two memorable nights at Parkhead. Two defeats against Lazio left a bitter taste in the mouth; meanwhile, losing against Atletico Madrid and Feyenoord away from home provided harsh lessons that can hopefully be learned from in the future. Of course, with the transition to a new Champions League format, Celtic could gain…