At the beginning you need to create a new manager. Choose your photo, fill all the gaps and define the game's currency. Now, choose your team. There are some available jobs in every country, so pick your favorite club carefully. 3 parameters describe squad strength: Attackers (Att), Midfielders (Mid) Defenders (Def). Team Chemistry is low for now, but will rise as soon as good results come in. You should take a look at your Starting Budget.
Check your emails from head directors, club owner and coaches. You need to find out about board expectations, youth academy reports and friendly matches proposals.