Hello
1)Make the tutorial to take extra money (for new users only)
2)Staff in the beginning :competent doctor,advanced trainer,competent pr manager
3)Your team must have 12-14 players...fire the rest
4)Arena:Very important part of the game...slowly slowly upgrade it
5)Training:Another one important part of the game...in the beggining i suggest you to train 2 positions-->6 players,buy 18-20 years old...after a season you can sell them and make good profit or if you want you can keep some of them.Minimum potential of trainees to be perennial allstar.If you will train ex.PG/SG the rest positions you
can buy "ready skilled players
6)Read game manual and other files that you can find on forums
I wrote you the basic steps.After when you will have experience you can make your own strategies about training,how to make profit...etc
If you have any other question,we are here to help you
Good luck