Do you have examples of some of the matches? From what I could tell a lot of the tactics you've tried never work for you? Is your AssMan setting OIs/clicking apply to everything your AssMan suggests?
They all seem to work for a bit then just fully die off. It could be the match engine. I'll send some screenshots when home. This one worked fine for my conference team till January then I started losing every game, same squad, fitness fine etc. Some i've stopped are because my strikers never score. So trying to get either a 442 with wingers, hate normal 442, or a 4231 or 451 with dm and 2 wingers.
Champ team it was okay but not great then I went 5 games with 0 goals. 4 losses.The 424 didnt work at all for any team I tried.
There is a theme though, every tactic ive used on here work for a few months of the season then not a small dip in form but a horrific drop.
My assistant manager does nothing, other than training. Its Bergkamp. (Former Arsenal striker, probably spelt wrongly)
I've never had this issue on any FM before. 19 I found a 451 pretty early that worked and stuck with it for about 9 actual months before 20 came out. I used a tactic from ZION for 4231 that gave me 20+ shots a game, but I kept losing after 4 months in the season. Again, i'll upload screenshots when I am home. I can get you 2 of them, that happened to be the same game as I saved before it on my last play, 30 shots, 1-2 loss. Played again, 33 shots, 0-2 loss. I believe these screenshots are ZION's formation, not this one.
I was really looking forward to this tactic, and again, my conference team started pretty well with it. The better but expected lower half champ team was winning games, 3-2, 4-3 etc, then just couldnt score and had barely any shots.
Honestly, no idea whats going on!
As a note, I bought the in game editor so to test these my players have full fitness and maximised tactic.
Edit: Attached 2 photos of 1 game I had on my phone. That started the trend of a 451 that just fell off. I'll send the others later. I can accept this a few times a season, it happens, but for me, it just fully falls off a cliff. I accept it could be me, as it works for others. But I am testing with teams that are predicted low. Not tested with a good side, which I see lot a screenshots are.
I judge tactics on the shots created. So the ones attached, which arent this tactic, I liked, but this happened every week. It always seems to happen in November onwards till the end of the season. This tactic just went WLDLLLLL. Before I used another tactic on the side and had only lost twice up to start of December. The reason I stopped that tactic is I didnt like it, it was the 442 from Knap.
Open to suggestions.