Roma lost 2-1, with Patrick Cutrone hitting a last minute winner.
Di Francesco stated: “Obviously when choices are made, they are to give a sense of defensive confidence that we didn't have before. It didn't pay off. I always get the sense we start slow, then grow and it is something we need to reflect on to ensure it doesn't happen again.
“I picked three at the back to ensure we weren't as pinned back as before, but it didn't work and we accept the result. What we can tell is that we are no longer solid at the back, even with the same players we had last season. We're conceding too many goals, make too many bad choices on the field and it's something we have to work on in training.
“I tried to make the defence a little more compact, but we kept getting our timing wrong on when to be aggressive and when to hold back.
“Principally, we lack sharpness when reading certain situations and it's as much psychological as physical. We didn't make the passes or seek the lines we usually do."