(I cant take credit for this post- this came to me from the guys @ Salesloft. www.salesloft.com These guys publish brilliance from time to time and this is one of those times!)
This practice may not immediately translate to more inbound leads, sales or efficiency but it will in the future. When you cultivate genuine relationships with your customers you stand to benefit from their referrals, from new business when they change jobs and sustained loyalty to your products.
These qualities also translate into your leadership of the sales team. Give credit often, communicate openly and often with your team about successes and lessons learned and inspire loyalty. These things will create a culture of collaboration which will be able to maneuver past complex deals and multiple degrees of separation.