Huh? Is this just a fancy way of saying they improved by 8 points and 3 league positions between the 20-21 season to the 21-22 season? Like I said, each season showed an incremental improvement in points. Even in the seasons when they were still developing there were some signs. They absolutely played City off the park in one of their matches, going directly head to head with them and dominating possession for spells, but still ended up losing on a last-minute Rodri winner. Of course their play wasn't outstanding each weak, they were a young and developing squad. Inconsistency was to be expected. Still, you could see them clearing out deadwood and expensive contracts, coalescing around young squad on cheap (at the time) contracts that could grow together to become a force, developing a team identity and, yes, improving results.
With ETH's squad composition, are you seeing the development of a young nucleus that will grow together and potentially become a force for years to come? It all seems like a hodgepodge patchwork job. But, to be fair to him, he has pressures to deliver more in the near term that Arteta did not and constraints that Arteta has not faced.
I only invoke Arteta because it is probably the closest "successful" comp of recent note at a big club other than Klopp. The situations and expectations are not the same, but there is something of a blueprint there for there for the sake of discussion and comparison. These discussion tend to focus on results, but there are other ways that you can demonstrate some form of progress and imbue a sense of belief. Poch is decent too, I suppose, but he didn't really receive as much support in the transfer market to reward his exploits and "giving him time" was the obvious thing to do because he was over performing without tremendous outlay or expectation from the club.