"They have stopped the big boys carrying, we haven't had a back line which has functioned very well," Davies told BBC Radio Five Live. "He has put his neck on the block and gone with the players he thinks can do a job for them, which we have seen them do for Wales.
"If he wins the game and the series no one will complain. I do feel it is very, very one dimensional and I am surprised Brian isn't on the bench. It is slightly worrying that we are coming in very one dimensional but that is his job and we all wish them well."
The Lions and Australia head into the decider on one Test apiece.