I regularly hear from sales managers that reps need help with time management to improve results. In reality, focusing on improving time management is not the real issue. For one could improve on their effecient use of time but not be doing anything effective.
The real issue that sales managers want to improve is performance and they see that sales reps are waisting time so they focus on improving time management. What is really needed is priority management.
When sales managers help their sales reps identify and then focus on the top priorities, sales improve. When you keep the main thing the main thing, people's performance improves. Too many times sales people get easily distracted with focusing on the urgent, but not real important stuff, and don't get around to doing the most important things such as making sales calls or closing opportunities.

The reason that people get easily distracted is that they don't have clearly defined goals or a plan to acheive their priorities. When a rigorous goal setting program is implemented with accountability time management improves and so do sales results.

When you believe you have a time management issue, what you have in reality is a priority or lack of priority management issue