Somewhat agree with you. I dont think its about decline. He has had mistakes in him his whole career, can sometime be bullied. Mentally, technically he usually does everything right, he is obviously a quality defender, but I always thought a little overhyped in terms of one of the best, Ramos bailed him out of trouble very often. The fanfare when he arrived here was OTT I thought, as good as the suit was.
On the other side of the coin, after watchign his documentary on netflix, I actually expected a fair amount more from him. He does have leadership in him, leading by example and the way he trains. He is a top defender and I disagree with people saying about him declining. Its not like he is gettign beaten for pace or the physical side of the game, its more the odd lapse. But personally think on here often Ramos has been very under rated, Varane the other way.
There sinply hasnt been a good centre back partnership since Rio and Vidic, we have had Bruce and Pallister and JOhnsen Stam, but nothing for several years and I dont see a partnership between any of the current lot. I think we need a physical beast like player signed, Bailly would have been the best partner if he could have stayed fit and not made monumental errors in his appearances or over zealous challenges. Romero would hav ebeen perfect, actually wanted him when we did sign Varane.
I am not sure Terrier is the right partner for what we have. I think the perfect player alongside Varane would be Gvardiol for his ability to run with the ball and phsyicality but he would be too expensive this summer for our rebuild