If someone else is taking over the team, you can give that person manager access from their player profile.
Step 1: Open the player
Go to Roster.
Click or tap the person who should become manager.
Step 2: Edit their access
Click or tap Edit.
Find the Team manager section.
Change their access to Manager.
Save the profile.
Before you leave
Make sure the new manager can access the team before you remove yourself or reduce your own access.