First of all, i cannot belive my eyes that people after sooo many forum treads/posts still ask for training.
Training is according to what you need to improve!!!
If you need more speed, train the players on that field. Obviously training a 30 year old for pace is going to be a lot less usefull than a 17 year old, but you still can do it to slow down the deteriation.
Training in general is runned on Tactic - VERY HIGH in ALL tactics in pre season to get fluid formation. Once season starts, Swap to Team Cohision if you bought ANY new players, and run that for 4-5 weeks atleast (depening on the amount of new players).
Once everything there is sorted you would Normaly swap to balenced with avrage intensity, UNLESS, and here is the key: you want to score more goal and dissregard defence, then you focus on attack. if yo uwant to be more solid defencively and feel you do not need more attacking training, go defence, kinda obviouse how it works right?
And so forth.
Now regarding MAtch training, i would keep it on tactic in general, and every month check the fixtures, and add according to them. AKA if its a trashteam you should win easy, focus on attack match training for that game. IF assistant manager tell you you should focus on defencive set pices, thats alllll up to you, but you should definetivly check the report for each opponent he delivers, and f they score 90% of goals from set pices, then it would be stupid to not focus on that would it not?
just think, please. It's realy not that hard.
When wanting to try a new formation, SAVE, duplicate the SAVE. Focus on 1 thing on one save, if it does not work, load the other save and focus on smthing else!