Yep. But he isn't the one expected to organize things at set-pieces, either - that's Dier's job, technically, as the 'leader' of that backline. Like I said, he doesn't, he focuses on marking his own man more often than not, when we need someone back there who will take Romero to task at the things he doesn't do well.
By contrast, Romero absolutely excels at the things that,in the main, the system asks him to do. Be aggressive, advance up the field, dispossess blokes high up the field. To a level Dier never has, and probably never will.
It's different roles at play. Romero is largely excellent at his. Dier is basically average at his. Davies is also basically average at his. Both need upgrading on to get to the top. Given we can't buy 10 players in a window, we will likely focus on upgrading Davies over Dier.