By Chick Young BBC Scotland football correspondent
The post mortem rumbles on: which is more than you can say for the championship race.
Celtic can try to right the wrong of Scott Brown's sending off, but it will be some plastic surgeon who can make their league season look good now.
Referees will argue that, by the letter of the law, the Celtic captain had to go because his head moved in a butting action towards Kyle Lafferty.
But, for me, it was a playground wrestle that could have been dealt with by a yellow card. Two, actually, because the Rangers man was just as culpable.
And Majid Boughera was playing tig with a card of the red variety too. He should have gone for a series of challenges, all of which would no doubt have Celtic's secret squirrel conspiracy theorist claiming he told us so.
Frankly, I am becoming a little weary of it all.
Celtic's Brown sees red in derby
Does anyone want to talk about football any more?
Or are we plagued forever with the social economic history of Glasgow and the West of Scotland and Ireland, of references to the establishment and men in bowler hats and claims that the outcome of the league championship is decided by a gathering of referees in a Masonic Hall in July?
Sadly, I think I know the answer to that.
For what it is worth, I applaud the game the players gave us on Sunday.
There was effort and enterprise and even composure. There were two astonishing saves from Artur Boruc and Allan McGregor, which underlined again the remarkable talent that goalkeepers have for ignoring headlines. It makes you wonder if they can actually read.
From the Celtic perspective, had they produced performances like that in the previous six months, they would not be staring at a cavernous gap at the top of the division.
The decision to play a clearly unfit Robbie Keane was a gamble that failed. But, when you have an iconic player whose wages are delivered on a fork lift truck, you can see why the manager took a chance.
And so the pressure on Tony Mowbray escalates from a murmuring of discontent to a thundering impatience. I am not entirely convinced he knew what he was getting himself into when he walked out on West Brom, but he sure does now.
It is ridiculous that some are calling for his head, but don't think the other lot would be any more sympathetic if it were Rangers who were struggling to get their act together.
There is a lesson in history here for Celtic. Fergus McCann came with a five-year plan and stuck to it. If the club had faith in Mowbray's idea of long-termism then they had better keep the faith in his work in progress.
Meanwhile, at Ibrox there is nervousness among the euphoria.
Sightings of Dave King, as keenly recounted as ornithologists on the case of an albatross, have fired concern and hope about the club's future.
King - the only genuine candidate to do a deal with Sir David Murray - and his arrival as the new owner is interlocked with the destiny of Walter Smith, who yet might become a candidate to be described as the finest manager the club ever had.
And, if Smith does hang up his waistcoat in the summer, what then for Rangers?
If he goes, he leaves with another championship under his arm. He insists that the title is not yet won, but only the most outrageous collapse - the combination of four defeats and a 100% run-in from Celtic - can stop them doing that.
That isn't going to happen. Trust me.
There is more chance of Fir Park hosting the Scottish Lawn Bowls Championships.
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