Training is the lifeblood for future sales success, but there are strategies and methods to the training process that make it succeed. There are also basic criteria for the salesperson. I just gave a seminar on how to train a salesperson to succeed. Having never given the program before, I had to document some universal corporate and self-training rules based on my experience. Don't think these are just company-based responsibilities.
Training is also a personal responsibility.
It's easier to train a smart person than an idiot. Hire smart people. It's possible to train a happy person. It's impossible to train an unhappy person. Hire happy people.