Nice thread !
First of all, I want to say that @t11_fan was one of the first guys that helped me a lot when I started playing the game.
We prepared together my team in some semi finals when I was lv2-lv3 and rookie in the forum
I find those tips solid as a manual for playing the game.
I 'm not using all of them, so I 'll put my personal point of view here and maybe adding some tips if I can.
Let's start with mentality.
First of all, I want to say that we can't change the orders many times during the game.
It's football (not basketball) and the game/process needs some time to react to your orders.
So, I change my orders not more than 3 times/game, max 4th, if I 'm desperate.
When I 'm starting a game, I wait till about 30' min, to see how the process- the balance of the game is going on. Then, I 'll decide if I 'll keep that way or gonna change something.
About mentality :
Starting from my 2nd season, I bought my token pack and I made a good team 5* and few early 6* players, so facing weaker teams most of the times I was playing attack. Then I read in the forum from some members (if I remember well, must be RJ Slow & Siddharth) that they were playing 4-5-1V , defense/counters and had many victories with domination. I tried, saw the results and from then I 'm starting that way.
Playing (log in) the game almost everyday, at least I prepare my team for the next match, even if I know that I can watch the game because maybe something gonna happen (some work to do, somewhere to go or internet loss).
So, I always set the defense mentality because as in real football, the first step to success is not to loose.
Then, when watching the game, I decide if I 'll change anything.
The second step to success is to win of course
I don't care match if I 'll win with a big score. For me a 5-0 victory, without cards or injuries is the perfect game.
Some times of course, I enjoy a great score, more because this will improve the stats of my players and this is gonna be useful later, when the time will come to sell them.