How about the outlier of Liverpool cracking the top 4 in the season they have had a negative net spend then Dave, something they failed to do in seasons they had huge positive net spends?
How about the outlier of West Ham, or Palace, both teams struggling in the bottom half and flirting with relegation despite being considerably high up on net spend over the last 5 seasons?
Arsenal for 17 seasons- Outlier
Arsenal this season - Outlier
Liverpool this season - Outlier
Spurs last 5 years - Outlier
West Ham last 5 years - Outlier
Newcastle in relegation year - Outlier
Palace last 5 years - outlier
that's an awful lot of outliers really mate
Your also somewhat weirdly obsessed with net spend - whilst ignoring a simple fact - net spend also reflects how good the club is at moving on players they dont want - some teams - for example city - don't bother and just get rid for nothing or let contracts run out, others such as spurs get as much as they can do for every single playing asset
Overall spending - more important than net spend
Clubs wages - more important than net spend