Orders and arrows for 3-2-2-2-1 butterfly?

[Accyrover]

Personally I find that 3-2-2-2-1 works better with no arrows with 'normal' mentality, that is what suites my players best especially if they are playing two games within a few hours of each other.
Not saying Potemy is wrong, it's trail and error as to what suites your own players best.

Bumping defensive stats would change the dynamics of the MF for instance, if that was your chosen formation for most of your games, having two MC's on the bench with Attack stats bumped would allow for a more defensive mentality yet still offer a strong attacking centre, or one of each.
Long term planning is the key to most formations, or bags of $$$