At your start you can do everything proposed on this page right now. Be careful they will be the only actions you'll be able to do without thinking too much.
Hire an new coach with passable level and poor leadership abilities for 79k€.
He will increase your players form and training efficiency for your team.
note for stamina : if you have lot of players 27 years old (or more) or with a stamina level lesser than passable (once your 1rst squad is done) opt preferably for 15%. Adjust according to the general age and current level. You can go unto 20%, it's up to you.