Why is everyone wetting the bed about playing 4 CBs? Pep has done it loads over the years - Ake, Akanji, Stones, Guardiol etc. The list goes on! Arteta also does it too - Gabriel, Saliba, Timber, Calafiori, Hincape, White etc..
This isnt something new!! In fact these guys are first and foremost defenders. Playing them at FB means you are more solid defensively and in the case of Branthwaite and O Brien encourages ball playing skills and moving forward out of defence with the ball. Means they become even more progressive when they do revert to CB. Gives more threat from set pieces too and they arent slow either.
So I'll take a point away at Brighton ta very much. I'm more concerned with making sure out home form improves and I thought our 3-4-3 switch against Leeds showed the way forward in terms of a formation to win games consistently at HDS. We are doing more than ok given how tight the table is this season. In Moyes we trust