What is this system you expect that you are not seeing? Is it a formation, style of play, tempo, intensity?
Early to mid 2000's we went through a re-build after a period of great success with great players/team. Then we entered a new period of great success, with great players/team. Towards the end of SAFs reign we saw signs of what's to come and anoter big rebuild. What happend. SAF retired so no rebuild from him. Moyes f*n it up big time in literally months. Then comes LVG and Mourinho with their philosophies and we're left with some 'on paper' good players and imo too many immature rich children who needed/needs getting rid of.
OGS seem to be the first manager since SAF doing an actual rebuild and create a team for the long term. And he has to do that, not after SAF, but after the catastrophe that's been the years after SAF. He's done alright, things considered. We're 5th as of right now.
And on the things he's saying in public. Pretty sure he's trying to build confidence, or at least not take away what confidence these players have. I honestly belive he wants rid of a few more players. Group psychology can be a funny thing. I am sure all at the club realise we've not performed as we maybe should be based on the 20-ish years before SAF retired.