Brighton full-back Joel Lynch is among nine new signings at the City Ground this summer but boss Davies believes the 21-year-old still has much to learn.
With Julian Bennett also months away from a return following his cruciate knee ligament injury, the Scot is still keen to bring in more cover.
Davies believes Lynch will be a valuable addition to the Forest ranks in the future, but hinted that they need a more experienced figure in the short-term.
"Joel has work to do and we are trying to get two players in every position, everyone knows that. And, at the minute, we have one left-back. I will say no more than that," Davies told the Evening Post.
"We are trying to fit round pegs in round holes still. Lynchy is a young full-back with very good potential but he needs a lot of work, which we will help him complete."