When you think about our two full backs, they really play as wingers.
IMHO Taggart and Valery are not great wingers but Valery is improving for sure.
Maybe we have no position for Bertrand anymore because of the way RH likes to set the team up?
If Taggart did get injured then he would either use Johnson (massive gamble) or what he did when Valery went off but to the left flank instead.