I do agree that VVD was better this season, which was a plus, I think towards the end of the season he started to look tired though and he's going into another season a year older next year. I think with that in mind and the state of Konate (often injured, often looks sluggish and unfit), we need to invest badly in a centre half or two. Quansah has been great and will hopefully push on.
I also wouldn't be surprised if VVD forced a move this Summer, but we'll see.