Few players have ever symbolised a club as well as Fellaini has symbolised Manchester United in these last four years. They played some of the worst, most soulcrushing football I've seen in my entire life, and that clown always seemed to be at the heart of it.
On the subject of Matic, I think it's a class signing. Chelsea gain a bit of grafting with Bakayoko but lose some excellence in return. I'm not convinced this was a good deal for them. I'd have understood it if they got Nainggolan to replace Matic, but this is tantamount to gutting the peak level of the team.