I will say it can and cannot be of concern. We can look at Madrid where Mourinho has used a younger player like Varane to replace an old timer like Pepe. It would be like Mourinho droping Terry for, a young prodigy like Kalas....if he was that good! But that at least shows me some hint of hope that Mourinho can work with younger players. Especially in a high stress environment like Madrid. If Roman relaxes the environment and encourages more youth, then I'm sure Mourinho will utilize the resources. But they have to be good with potential like Varane. As far the other concern, I wouldn't know too much about it, so can't comment.