As part of its weekly wrap-up, Footy Maths has a neat graphic depiction of the slide of the Pies under Nathan Buckley, and a measured take on what it means:
Both arrays of data show a decline since 2012. Collingwood has yet to become a sub-average rated team by the FMI measures, which is a limited positive.
Also, when compared to the Essendon journey since Sheedy, the decline has not been dramatic enough to have been sub-par as the Dons were three times before sanctions were levied. But also, after each dive there was a rally and development. The above chart has much less rallying, and more flatlining.