Adding players over January is not the solution to our current problems. We can't get the best out of the current group, and adding a new player to an already confused/unorganized team will potentially create new problems.
However with Momo gone to the ACN, Camo injured, and Tiaga a lost cause, if we do make 1 signing in January I imagine our management would be looking at a midfielder.
Ledesma hasn't played 1 game this season and won't be anywhere near match ready or in the form needed to immediately add something extra to this team. Not to mention he is hardly a game breaker to begin with.
As for Pandev, players at his level are rarely available for free. Although with everty1 fit, Ciro will have a big problem. None of our current 4 strikers will take more bench time lightly.