Do you mean a physical presence by way of support ?
Or the LCB verbally coaching him as such , in a defensive minded way , positionally ?
Weirdly, and I said this on the Maty Ryan thread, I don't actually think our 3 CBs are playing that well. Webster has imperious games, but also games when he's just too jittery and gives the ball away too much (I wonder if having fans back contributed on Monday?), Dunk has been solid but less noticeably good, White is improving and Veltman looks solid. As a 3, they look good but they could be amazing.
The fact that we regularly have 4 CBs on the pitch but can't win a header, stop giving up goals from set pieces or stop conceding weak goals is FAR more of a concern than whether Solly can defend. The bigger question is: Can our actual defenders do it?