Three weeks ago? You mean, like maybe after the UHN series? And they've been sucking ever since? Hmmmm............................... strange coincidences
The conspiracy theorist in me would speculate that once he got the contract extension, and was now feeling pretty secure about his position, he took a heavier hand in managing the team, in short, re-installing his 'system', and taking less input from others in putting together the gameplans and the coaching. And the results have shown on the ice since.
But that's just speculation.