How does he even improve us, he hasn't got a ton of pace, quite slow from what I've seen of him, he's no upgrade on what we got in Maguire unless I'm missing something?
It's fair to consider him to be at Maguire's level right now, or at least the Maguire that was half decent, so before last season. De Ligt's no ultimate pace merchant but a little faster than Maguire though, at least in terms of acceleration. He's also 22 years old, and it's looking like he'll become a better player than Maguire ever was or will be over the next two to three years. So he would very likely improve us over the next three to four years, which nicely coincides with Maguire and Varane turning 30 next spring and our club aspiring to have some kind of long term vision.
Natural born leader on top of that, whether it's Chiellini, Vidic, Ramos or Puyol, you can't really put a price tag on that type of personality, and De Ligt has it 100%. Unlike Maguire, who was given the armband to get more confidence and made us into a bit of a laughing stock. Just like De Gea or Shaw, I don't see real leadership in their personalities, unlike what we had with guys like Edwin, Vida or Rio or even Evra. Players with that mentality are fundamental if we're ever serious about winning the Premier League again, I would say 7-9 players in the squad with that natural leadership is as important as their pure individual quality.