Interesting to hear and agree. Personally I'm a bit closer to BW's perspective, and generally feel a little vindicated for my estimation and predictions for the team last season. I think like you Clrnce, I felt the true value of the team has been top 4 for a while and by that account Arteta failed to realise it, say 2+ times? Last season I felt it was higher (hence musings of '4th or higher'). Like Doc, think there's a gradual evolution* in process thats 'tipping' performance and points further towards true potential. We had 8-game, 5-game, 4-game win streaks last season that were drawing us further to expectation. Talent aside, a physically able #9 also seems pretty transformational on the face of things.
*Maybe unlike BW, at the moment, I put this down to player development and collective chemistry, more than systems and tactics. Maybe playing out the back and first phase systematic build up was transformational but I think the team embedded that early on, 5 or so months into Ramsdale joining. The other tactical adjustments mentioned are worth highlighting, but to me, are not necessarily tipping points.