Actually, there likely is a guarantee. Kessler's MPG is low simply because Hardy played him much less in the very first games. In each of his last 6 games Walter played 30+ minutes for the average of 32.5 mpg. And during his last 6 games Kessler averaged 13.5 PPG, 12.5 RPG, 3.5 BPG, 2 APG on 80% FG. It was exactly this most recent stretch of his games that made me wonder and make this thread.
Now, I do not feel that he actually surpassed Gobert - at best, he possibly moved into the same tier of centers. But if Walter maintains the same level of production he showed in his last games over the rest of the season then some people would probably change their answer to the poll's question in April.