oh… 
means take it lighlty
Establishing Mutual fund is complex task with lot many regulatory restrictions.
will give you some idea what it takes to establish fund
The fund managers and their research teams do hard work while selecting stocks. Above might be a stretched comment. if they can do their job well for 40 stocks, the same can be true for remaining 10.
Also from your point of view , if someone is picking up obviously bad 10 stocks, what inspires confidence that rest 40 are excellent ?
In my humble opinion , you may like to re-evaluate your strategy.