Had the same problem a week back tactic just didnt seem to work for me , probs my lack of management skill but i was losing to sub par teams. found this tactic tho and it works a charm....
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Its under mourinho flexible 4-3-3
Had many a season unbeaten best of luck
BTW its the same formation and high goalscoring concept
Do you know who the author is? And is it a 433 or a 4123