Sales is a tough, often disappointing job. It’s literally riddled with problems—that’s just the nature of the gig. But when it goes well, it can be one of the greatest rushes in the world. In order to improve sales, successful salespeople need to understand and identify the three major problems affecting their job: business, technology, and sales. According to Forbes, not identifying all three problems will not give you the full picture, and ultimately cost you closing the deal.