Jose Mourinho will forget what has gone on for the last three disappointing seasons at Manchester United, he said in his first interview after being installed as manager Friday. Since Alex Ferguson retired after winning the Premier League in 2013 the club has finished seventh, fourth and fifth, securing its only silverware in that time by winning this season's FA Cup. That trophy was not enough to save Louis van Gaal who was dismissed this week following two years in charge. "I think I prefer to forget the past three years," Mourinho told the club's TV channel. "I prefer to focus on the giant club I have in my hands now and I think what the fans are expecting me to say is that I want to win. "I think it comes in the right moment of my career because Man United is one of these clubs where you need really to be prepared for it," said the charismatic Portuguese. "Giant clubs must be for the best managers and I think I am ready for it so I could say I am happy, I am proud, I am honored. I feel great. "I want to win," added Mourinho. "I need the supporters and players to feel that. (The fans) know what they can give me and what I can give them." Mourinho has been given a three-year contract, which British media estimated being worth between 30 million and 45 million pounds ($43.99-$65.98 million). Mourinho has a lengthy to-do list after taking over at Manchester United. The team has deficiencies in key areas — notably up front and in central midfield — and Mourinho must decide what the future holds for captain Wayne Rooney, a striker now seemingly more at home in midfield. Other questions for Mourinho: Will he continue United's long-held tradition of giving youth a chance, or does he scrap "potential" in search of immediate success? And will a pragmatic coach adhere to the attacking style craved by United fans? A look at the challenges facing Mourinho at Old Trafford: Striker shortage United is chronically short of out-and-out strikers. Marcus Rashford, an 18-year-old Englishman, finished the season as the team's No. 1 forward but there is little competition for him if Anthony Martial remains on the left wing and Wayne Rooney continues playing deeper. Will Mourinho even keep faith with Rashford? There is talk of Zlatan Ibrahimovic moving to Old Trafford, reuniting with Mourinho after their spell together at Inter Milan, and he would clearly be the kind of big-name player United is looking to bring in. Even if, at 34, he hasn't got long left in his career. Rooney riddle Mourinho twice tried to sign Rooney when he was manager of Chelsea, and now he has his man. But where does he play him? The England captain's days as a main striker appear to be behind him, so will Mourinho start him as a No. 10 or as a central midfielder? Mourinho may even want more power and pace in those positions, which would leave Rooney's future uncertain. The Portuguese coach's arrival could also impact heavily on Juan Mata, who was sold by Mourinho at Chelsea in 2014, while United's one-paced central midfield containing the like of Bastian Schweinsteiger, Morgan Schneiderlin and Michael Carrick may need revamping. Youth policy Even Mourinho's fiercest supporters will concede that bringing through youth players has never been his priority at the clubs he has managed. Mourinho will be under pressure to keep the conveyor belt of academy prospects moving. Style Van Gaal paid the price for his risk-averse, defensive style of play at United. And in Mourinho, the club isn't exactly getting a coach who preaches beautiful soccer. Mourinho is undoubtedly pragmatic and is a win-at-all-costs type of manager who has been known to "park the bus," but some of his teams have entertained over the years. United supporters will surely accept brief lulls in entertainment, provided Mourinho brings success to the club. Europa League "I don't want to win the Europa League," Mourinho said after beginning his second spell as Chelsea manager. So at United, it will be interesting to see if he takes seriously a competition that can play havoc with a team's domestic schedule. The Europa League offers a direct route to the Champions League for the winner, but a Thursday-Sunday schedule has proved difficult for English teams over the years. And Mourinho believes his true home is in the Champions League, which he has won with FC Porto and Inter Milan. — Agencies