The Free Training Videos available at Tableau Training and Tutorials are a great place to start learning about Tableau. There are also free Live Online Training classes available here: Live Online Training | Tableau Software
In regards to the two views you want to create, can you provide a mock up of the expected results using the sample data provided? For example, what are the values you expect to see per senior managers in the line chart displaying % completed timely? Having a clearer idea of what you expect to see can help us help you build the views you need.