Personal selling

Because the Promotion “P” includes advertising, public relations, sales promotion, direct marketing, and personal selling, we will do our best to try to cover some key elements of each subset in our Week SIX threads.

Now, we sometimes may not think about this, but the sales team is very much a part of overall corporate IMC Promotion.  As someone once said, “Nothing happens until the sale is made.”
How does 
personal selling contribute to the IMC effort?  After you share your thoughts on this, what are the ways that sales reps are compensated?