I tend to agree that this is a kind of a purge, a chance to reshuffle the deck and put ass-kissing opportunists in the mould of Wesley Clark err, 'Officers more in tune with Obama's sophisticated policy ideas' in key jobs. However, the big purge of the Red Army that gutted its senior ranks and paralyzed decisionmaking during the actual German attack occurred in 1937, it was just so extremely damaging that it was still crippling the Red Army four years later.