The dust has barely settled on Manchester United’s Europa League victory and already attention is turning towards next season. In some ways that is what the final against Ajax was all about – setting the tone for José Mourinho’s second campaign. United’s League Cup triumph, combined with the only trophy missing from the Old Trafford cabinet just about offset a mediocre sixth-place finish in the Premier League. It allows the manager to look ahead with a degree of security. So what now?