This is my theory on McInnes, and the entire team. Not sure if it has been mentioned before. But here it goes...
As you know, players get paid extra to play SOO. therefore, at the beginning of the season, players are playing out of their skins to get to SOO (and get paid their bonus)
After SOO, there is no need to play with so much intensity anymore as they will receive their full pay packet.
It's funny how the likes of McInnes, Aitken, DeBellin, and Hunt's form have dropped so significantly after SOO. Because they know that no matter how well they play the rest of the year, they will only be considered for SOO at the beginning of next year.
I also noticed a few years ago Lafai was playing out of his skin just before contract renewals.
It's the culture at the club. No one cares about the club, just how much money they can get out of it.