I just feel the situation has changed since the start of the season:
I get the idea that the Moore, Atkinson, Mousinho trio would be the mainstay of our CB cover, with occasional support from Jones/Long on the odd occasion when two of the three were out. That mirrored last season, with Dickie, Moore and Mousinho, albeit slightly weaker.
However, my concern now is that Mous is not up to being that third part of the main trio any more, as his injury seemed to manifest very quickly into the season, and does raise questions over ongoing recurrences. This coupled with perceived concerns over whether Jones is ready to be the 4th string and whether we are going to need Long to stay as our core RB while Clare struggles to settle, means that the original strategy does not hold water.
Hence, I feel we need someone to come in to be that third prong of the trio with Mousinho dropping into that fourth support role. And while I get Robbo's desire to keep the conveyor belt going by bringing in the next one to grow and sell, I think it is time to step outside of that for once, and bring in a more experienced head to that part of the pitch for the now, rather that the future. Obviously, finding someone who will be happy to not necessarily play every game might not be that easy, but I feel that doing so would be the best use of that final senior squad slot.
In an ideal world then having another left winger (Browne or whoever) on board would be a plus, I think we are better placed to cover that position with what we have and/or a young loanee than we are centre back