I need advice on time management in sales. It's more related to natural planning model. It's clear how to plan weight loss, product delivery or any other measurable project. Sale is difficult to measure. Passing proposal not always moves you to the close. Any action could totally change the whole game plan. My workload as a sales manager is huge as I try to be everywhere

Please advice:

1. What responsibilities should I do myself and what should be delegated to my team?
2. How to plan a deal (sales process)?