Note im using on the touch version so not sure if still applies . I’ve found adding in a defensive midfielder with the role of anchor helps with not conceding goals (taking away extra defender). Also changing the iwv to support vs teams with aml and amr especially seems to help the defensive record. Also get the fastest centre backs defenders you can that helps a lot. Changing the two midfield roles seem to make them score more goals also, depending on their best position, for example I had bernando silva at Napoli and he was far better as a mez than a centre mid, during that save I went on a 40 game unbeaten run. I played a save with with Chelsea (signed manolas) and didn’t concede a goal in the first 10 matches in the league. Also doing the standard stuff of last 15 minutes adding in another defensive midfielder and going defensive in terms roles i.e defensive winger etc and team mentality. Changing the striker role to see which works best also helps. I shall try a two forward save and see how that plays out instead of the defensive midfielder.