Take a look at your squad. Find the formation you want to use, and find out what you need and what you don't need. If you don't need any players, put them on the transferlist. You might be pushed to sell some players if you need money, 2. Rebuild your stab Read about this in its own article .
Many good coaches are available.
Buy new players Read about how to do this in the Buy and Find Players section. Set up the training schedules Read how to do it in the Training for Success article. Cancel all of your pre-set friendlies and set up three new friendlies. I think three is good number of friendlies. Set your last friendly around a week before your first match of the season.