We don't train because we're busy, short staffed, don't have the budget, etc.
If you only get on the training treadmill after a bad month it's time to stop crash dieting and make your organization more fit by establishing training as one of the "non-negotiable's" in your business.
There is no cheap ride to greatness and if you're not willing to pay the price in dollars and time it takes to develop your people, then you will pay a far higher price for them remaining ignorant and uninspired.
Training your people to maximize each opportunity they see each day rather than let them slip through the cracks in hopes an easier one comes through the door is another task that will bullet proof your business and help condition it for sustainable success.