Defensive +/- SiB
We looked at this similar data for team shots generated a few weeks back, but as a reminder, this below +/- data is calculated as below: If Arsenal have faced Stoke, Southampton and West Ham who had, on average, managed 8, 12 and 10 shots inside the box (SiB) but Arsenal surrendered 6, 14 and 9, we would record a +/- of -25%, 17% and -10%. We then just take a simple average to give us an overall rating of -6% for these games. Note that from a defensive perspective a minus number is good as it represents less shots surrendered than the league average. By plotting this data against actual goals conceded per game (GPG), we might be able to identify teams whose results have fallen short of their underlying performance and thus might be poised for some improved results (or vice versa). The data has been split between home and away given that some teams present significant distinctions at home and away. The size of each plotted square represents the total SiB surrendered (at home/...