Brain - I don't think the Dier/Vertonghen partnership looks very strong to answer your post without quoting, we've conceded 50% more goals with them two as a starting pair than with the Fazio/Vertonghen partnership - which i put down to Fazio being a leader in character and Vertonghen being a quality CB when able to focus on his own game - when left as the senior (leader) CB, as with his partnership with Dier, the team suffers defensively as (imo) it's two individuals rather than a partnership