If you don't train them you can deflate the value of your product and service in their eyes. Ask yourself the following questions. Sit down and make a list of pros and cons. If you approach this in a methodical way, you're far more likely to create a success story in the process. A company using open management shares information.
Few areas are off-limits.
A closed book style, on the other hand, is just the opposite. Little or no information. I can't say with certainty which is best, but I can tell you which I like better, which I try to operate by, and which one employees seem to prefer. A friend recently told his employer he was resigning to take another position. The employer told him not to tell anyone.