Dont think Ilori was ever going to walk in to a CB role here, there's still far too many questions surrounding him.
Proving his fitness, and robustness out at fullback is a natural way to eventally move in to a more central role, much in the same way Gomez will.
Maybe he'll get a shot at CB in the Europa League and League Cup and kick on but this is pretty much make or break for Ilori now at Liverpool, he has to start proving himself and most importantly he has to stay fit.
A Jomez and Ilori CB partnership looks very exciting on paper, be nice to see it at some point.