What’s the best way to train your employees?

Ben Horowitz (Co-Founder & Partner @ Andreessen Horowitz)
Why Startups Should Train Their People – Ben’s Blog

Training is, quite simply, one of the highest-leverage activities a manger can perform. If your training efforts result in a 1 percent improvement in you subordinates’ performance, you company will gain the equivalent of two hundred hours of work as the result of the expenditure of your twelve hours.