- Helping others is bad. Aka "digging your own grave", "spitting upwards" (you know it will land on you sooner or later) or "sawing off the branch you are sitting on". The curve system discourages any desire to help others excel in their learning because a better grade for them might mean a worse grade for you. Thus, crossing teamwork out.
- Doing less you will get more. There is an inherent performance management system failure. Some of my classmates outright refused to take part in group activities, focused only on individual studies and got better grades. Important lesson: don't commit.
- If you don't bend the system, the system will bend you (and not in a good way). What is best for the school does not necessarily mean it's best for the students. We were lucky to observe that with a number of events (e.g. Segovia entrepreneurial conference or feedback/professor selection processes). Takeaway: watch out for yourself.
One last thought: MBA might also stand for:
Mediocre But Arrogant
Mighty Big Attitude
Me Before Anyone
My Bogus Achievement
Master of Bullshit Artist
Managers By Accident
Many Brief Affairs
Massive Bank Account
Married But Alone
Married But Available
...and it does not always work that well: