Manchester United are strengthening the first team and aim to do it with a clear focus on youth, making long-term fixes. Much to the frustration of supporters, Manchester United’s transfer history has been littered with short-term solutions. New investors Ineos have signed two players so far this summer, the oldest of who is just 23, Joshua Zirkzee. New centre-back Leny Yoro is just 18, and arrives with high potential. Manchester United convinced Yoro to snub Real Madrid. READ MORE: Who Is Leny Yoro? Parents, Social Media, Lille Career, Man Utd MoveLeny Yoro a major coup for Manchester UnitedT…