I won it 3 times and lost my first final last season. Drove me mad as it costed me the treeble. So, I switched to the "tactics" reported here several times: keep your top 7-8 players, sell others, buy the crapest you can get and pray.
And it seemed to be working: the draw I got was the easiest by miles I saw in 12 seasons. I am the huge favourite now.
But to me, this is cheating and I am not proud of myself.
The price to pay is the terrible waste of money when selling your players the last 2 days of the season. And having hard times buying new ones early in the next (when usually I try to avoid transfer market in the first 3-4 days).