Maybe, just maybe, his comments were aimed at the centre backs we have, you know, to give them a manager boost. Install a bit of confidence into them. No one likes to be told that their position could do with an improvement.
The truth of the matter is, we were weak in the whole of defence last season including goalie. The full backs were either too inconsistent, injured or not adapting well to what Pep wants from them. The defence looked a lot better when Kompany returned at the back end of the season. This might have had something to do with Pep's words and them getting used to his ways but it also shows that without our captain's organisation skills and leadership qualities we were worse off.
Could we survive another season with an injury prone leader, 2 other central defenders and a fill in? Maybe. Should we if a player comes along that fits the bill? No.