why not tell the players they cannot wear corn rolls or other non-conventional hair styles?
Sure, why not?
The company I work for regulates my hair length. In fact they regulate the length of mustaches, sideburns, and do not allow "soul patches"(the patch of hair under the lower lip, for you non-hip dudes'info).
We also cannot have facial hair...of course that is understandable, since we have to be able to wear a gas mask on a quick response. (Nuclear Power Plant Tactical Response Team)
Also, no nose rings or tongue piercings allowed at my place of employment.
If I don't like it...then I won't let the door hit me in the a$$ on the way out.
So you think I would feel sorry for a bunch of spoiled millionaires if they were told they had to wear their hair a certain way?
I don't think so.