I suppose depends who you are going, how you play the game, manage morale, pick for positions etc? I'm going to do a testbed with Bournemouth who are predicted to finish in game 14th in the Prem and finished 14th in real life. (note they conceded 70 league goals, so aiming for shoring up the defence at least) So I guess a good tactic elevates them, a bad one lowers that. No signings, just first half of the season until January. Anything after gets affected by transfers(other leagues being run transferring).
Maybe have midfielders with decent long shots and a RB with decent finishing to help with the shooting. Trying to give constructive feedback but without seeing the save can't do much else. I tend to have all my players have decent physical stats comparable to other teams, so that even if the game is slow starting by the last 25 minutes we are rolling over sides.
Here's my base player filter I use at non league level. Notch the levels up to 14 for the Prem.
If all players bar the keeper have that, then you'll be competitive on a fitness level, thereafter it's all about getting baselines per position.
I suppose I really should do a post elsewhere on how to play FM to win.