It's so great to have so much feedback and various opinions, thank you!
My main point in this thread was the actual effect of using defensive/normal/attacking mentality. I find it hard to understand how they really work, as I've noticed that using attacking results in the team behaving in a more passive way than when using normal mentality.
It seems a bit ambiguous if they actually work at all, so I'll take a closer look next season what real effect they bring about.
All experienced managers - your advice is precious to me, please share some more hints (or divine power)