As said above, it's fine to say that the young guys could fill in, but with only one window to make signings between now and the end of the season it makes sense to ensure that we're covered in every area. If we stand pat and go with what we have, what if one of these kids gets injured, or turns out to be shite? We lost four players from an already small squad, and we should be looking to replace all four. We are still in two cups, and have some fixture congestion coming up so we'll need a squad.