It's one thing to critique a player but to call him a coward is plain ignorant. It's the kind of thing a coward would do.
No it’s not. But I suppose that sums up your entire post.
It’s something you cannot coach.
When a player regularly struggles against a stronger opponent and frequently hesitates going into a challenge both on the ground or in the air, they are a coward. He is all about ground game and absolutely dreadful in the air because his heart isn’t in it when it comes to a battle. You will regularly find him screaming on the ground after an aerial challenge or if he mistimed his jump, standing with his hand up for offside. That became a meme in Scotland for a while. It didn’t really matter how far inside the forward was, he’d be standing claiming anyway. It really annoyed Chris Sutton though so that was a bonus.
He has a lot of potential though but more often than not, he does look like a player who was a midfielder drafted in to play at centre back. I think a back 3 would suit him better and it was tried at Celtic but quickly ditched because they didn’t have anyone else to play there. Shane Duffy was a disaster.
He could go on to be an excellent defender but don’t be fooled by his height. He’s not an aerial threat in the opposition box at all.