Yes, this post should be moved to another section.
In-game, you could view other managers’ profiles at auction and add them too. New season is starting soon, so as long as you are diligent in clicking some profiles while waiting for your interested auctions countdown, you should have added a lot.
Then during event, try to support other managers as much as you can. You don’t need to stay watching the whole game, but try view those supporting games again some 20 minutes before they end. You should find a lot other supporting managers who you can add.
Repeat this process for 2-3 seasons, then you’ll have a such a full friend list that you would be deleting inactive managers to keep the most active ones.
As long as you keep supporting this circle of friends, it is difficult of not having max +15% bonus in possession in most games.
Winning is a form of art. Consistently winning is a show-hand of skills and luck.