SuperBanana
Banned
Turn depends on agility stat (you can see it when you view the persona), the persona with highest agility, between your teammates and the enemies, go first then the 2nd highest and so on.
The exception to this is an ambush where your entire team goes first for one turn then it returns to normal or when you get ambushed in which case all the enemies go first.
Morgana is also probably set to auto command at the start of the game, change him to direct commands under options -> stats -> tactics
Ah ok, I didn't know it was based on agility. Thanks.