It's been a week of Old Firm bleating about lessons being learned.
Rangers need to learn to defend after falling to bits in Brugge .
Celtic need to learn how to sign players before their biggest games of the season.
It’s all pretty much kindergarten stuff that shouldn’t have to have been learned the hard way.
But here we are. The two Glasgow clubs heading into a derby clash – and both under severe pressure.
Historically in these parts there is a ying and yang. When one is up, the other is down, and vice versa.
There was a period in the early 2000s when both were more than decent and went toe-to-toe, with results swinging either way. But, usually, one is flying and the other is in the trough.
This weekend? If feels like both sets of supporters are on the verge of