For the second year in a row, Rangers have capitulated after the winter break in Scotland and Kilmarnock played a role in their downfall.
Having been with the club last year as a player, I know an inquest and hastily-arranged meetings will be taking place to figure out what has gone wrong and how they can urgently rectify the situation.
Was too much focus put on beating Celtic before the winter break and then complacency has set in?
Did they train too hard out in Dubai and the players are exhausted?
Is an early start to their season, with their participation in European competition, catching up with them as some of the players will have played in over 30 games by now?
But whatever the reason, Celtic have proved they are simply ruthless after dusting themselves down following that defeat to Rangers in December.
Their consistency is very impressive, they are able to grind out results when needed, and in Neil Lennon and Scott Brown, they have leaders who have been there, done it before and I can't see them slipping up now - even if there are two Old Firm games still to go.
I expect Rangers to galvanise, turn things around and run Celtic close, but the damage may already have been done, once again, straight after the winter break.
Rangers didn't learn their lessons after last year and I feel Celtic have shown true grit and why they are the champions.