Sandler Training, Loveland, Colo., John Geiman and Don Overcash • Why commit to Sales Training that's Challenging, Rigorous, and Never Ends? Because you can’t master a new attitude in a crowded conference room between morning coffee and a quick boxed lunch. Your success in sales is earned by committing to undergo a change, a growth and an evolution over time. That’s how our revolutionary Sandler Sales training works – over time, through gradual incremental growth and development – through our unique program of training, coaching and reinforcement. Once you’ve taken our training, you have a sales coach for life.