I have some sympathy for you...I have a friend with a good team, solid tactics and a sound formation. He is currently bottom of his league and, as far as I can tell, he's doing everything right. He does have some better teams in his league, but he is vastly superior to over half of them. He even watches 75% of his games. I've watched 3 with him and would have done exactly the same as him. The morale and condition were over 90% for all players in all 3 matches.
He's level 10. You don't get to level 10 without learning something about how the game is played, so I doubt the games I didn't watch were horrendously mismanaged.
He suggested to me that the game might randomly select some managers to try and get them to use the new 'switch club' feature.
I suggested this was cynical, but am seeing lots of posts about inexplicable results and would suggest something is amiss, even if his theory is far-fetched.