Hey DerAdlerIstGelandet,
re "That or his military commanders are completely inept."
I do not know if that would explain it. The Ukraine has ~200,000 active military personnel (~170,000 ground forces), plus ~60,000 national guard, plus ~50,000 quasi-military border police. And the total population is around 44,000,000 people. You can not be anyway sure of winning a military action at ~1:1 odds on the ground, and there is no way the RF could sustain an occupation of Ukraine that would not be a disaster in terms of expense (even without the new economic sanctions).
Maybe if he appointed people to the positions that had no military strategy training? The majority of the wargamers I know understand the historical odds factor for attack vs defense, and basic logistics.
If I let my paranoia loose, it is as if this is a side show, or maybe expected to become a side show.