From elsewhere...

"Russia’s military BS, its inflated readiness and pencilwhipped training & inspections, deceived the worst targets possible: their own high command.

It’s pretty obvious that Russia thought they would pin the bulk of the Ukrainian army’s best units in the Donbas and trap it with a double envelopment, preventing it from pulling back to reinforce the capital, which would be seized by a coup de main striking south from Byelorussia linking up with the airhead at Hostomel.

All very Shock & Awe. Very lighting warfare and deep battle. And literally none of it came true because it was all wishcasting based on undertrained troops and fantasyland readiness reports."