My overall strategy included to get stronger every season. Being better than last season is meant relative to the new requirements, so I have to improve 5+x levels each season.

This had worked good so far, but season 4 was the first possible season to start with a whole cap level 39 team. So the only way for a better start-up in season 5 would be to start with one or more 6 star players. Meaning I had to improve players to 7 stars during the season. This was my basic thought when setting up the season 4 team in the first 3 days of season 4.

As i did not buy new players after day 11 during season 3 and winning the triple later, for the first time I had lots of money to spend. So I replaced half of the core team and went for the most expensive, fast learning players. Whoever did not met the requirements was sold right after the purchase. I went for a balanced team without weaknesses so far, but I would concentrate Power Training on those fast learning players in season 4. I filled up with old cap level players who would give me a poor performance in late season 4 but this would give me an edge in seasons to come.

Season 4 started with some difficulties due to a whole new team and lots of training and testing. In a horrible match performance against a much weaker opponent my league match winning-streak broke, which had lasted since mid-season 2, in a nasty 1:1.
Overall it was a good thing. It reminded me in not being invincible and to focus on every little aspect, even when playing a team 12 levels weaker. Also it keeps the competition alive and there´s much harder seasons 6 opponents to come in the cup. On the good side, I slowly find the old performance now. Having beaten a season 5 and a season 6 team in the cup so far isn´t that bad of a start, too.

League competition is kind of average, stronger than in season 3 but not as tough as in season 2.