I'm familiar with the article, but it is talking about AI improvements and what the AI can do, not that they're specifically combating PnP tactics. Your post was just a bit misleading.
If the AI were ever brought to a level implied here, and I'd love it to be, places like these would be rage quit central. There may have been some improvements, but they are barely affecting me. In fact I still see them doing **** on occasion that was covered in entry level guides years ago, plus there is still multiple teams always that need 20 shots on average for a goal if you take a look through team reports, which has always always been tactical. Plus making it out as if you'd need to switch stuff around just for switching stuff around is still
horrible advice. If AI would be able to react better to certain formations, etc. it wouldn't do so after an arbitrary set of matches, it would do from the get-go. It also wouldn't affect purely the human manager but every single manager in the game likewise, as that isn't SI's design ethos.
The reason plug&play tactics don't cover everything are fare simpler and have always been. Ever since the truly diablo the truly fool-proof super tactics have disappeared. This was stuff that exploited major marking bugs to an extent that even if you were totally outplayed you were guaranteed a decent amount of quality chances each match taken. On some releases simple set piece exploits saw you better AI shot conversion straight out of the bat. Yes, their tactics and decisions naturally too, as on some releases they often just pushed their entire midfield forward. Plus right with a pick in formation, there is a strength and weakness already. Which is why it should be. There is no perfect tactics. Go narrow and you are prone to be overloaded down the flanks by AI that play formations with backs and wingers, etc.
I see the above as a piece of promotion, at least in parts, tbh. Otherwise the frustration thread here certainly would have quadrupled, as there's many players that never learned to play the game technically always going to download tactics directly and you had an influx of brilliant wank as this for sure.
Football Manager - The BIG LIE ***AI Bias*** - General Discussions - FMS Forum 


PS: Who's to say any of what the OP is experiencing was primarily tactical either way. Genuine question. There is good and bad fortunes influencing runs already as matches tend to be low scoring affairs, for a start. Plus fixture lists. Plus injuries. Etc. Etc. Etc. If he can't work that out, he's ill-adviced to just switch stuff around just for switching stuff around for sure. This would also apply
if AI managers were more reactive to their opponents. If you can't figure out what it is they may be targeting or stopping, be it themselves getting overloaded in an area of the pitch or else, a random switch of a lever is random switch of a lever.