Now you need to increase your sales force by adding people who you hope you can train to the level of sales success that your essential people are at, and not loose them in the mean time. You have two choices. Hire salespeople who do not know how to plug a computer in, and train them on the technical side, or hire technical people who could not sell water to a person in the desert and train them on sales skills. A simple answer is to use your existing technical staff as sales support and hire people who have a proven sales record, preferably not in carpet or used cars sales. Now that you have hired new sales people, you NEED to train them on the technical side.
Training is often, and in most cases, something that is overlooked.
When 'management' hires sales people they often expect the sales person to start producing immediately and forgo the training and completely forget about the sales cycle. The simple point is that salespeople will have as much technical knowledge as you are willing to give them. If they are unwilling to train then you hired the wrong person. This brings up a very good point. Fire, and fire often.