Also don't forget to tweak your tactics! I put my speed between 30 and 40 and passing between 35 and 50. When I don't find an opening for a dribble or a pass, I just use precision dribbling. Imo the best addition of last year. After three short touches (you can count them!), players will start to alter their positions to make it easier for you to pass the ball. Try the return pass in a situation like that and see what happens. You can really catch a defense off guard like this.
Also, depending on the level of your players, you can create chances by risky passes. But it requires a lot of trial and error and you really need to know the speed of the player who tries to get open AND the passing capacities of your playmakers (long, medium and short accuracy). This has worked for me in the past but I tend to stick to posession of the ball with safer passes. Mostly around 45. Then crosses and shooting depend purely on your strikers and midfielders. And also your playing style. Someone whose offense revolves around a strong target man shouldn't play with Barcelona for example.
In career mode I do the same. I sell players that don't fit in my plans and buy the ones that will (hopefully). This doesn't mean to sell a 19 y/o lvl 83 striker who doesn't fit in your plans of course!

Develop your own style, keep on tweaking those tactics until you got it just right. And you have to tweak them (minimally after a while) everytime you play with a different team.