On the Athletes List screen, by clicking the "ADD" button (for the web app) or the "+" button (for the mobile app) you can invite a new athlete to the system. After opening the invitation dialog and entering the athlete's email, we will check their status to see if they already exist in the system or not yet.
The Athletes list is where a coach starts. It holds everyone you currently work with, and clicking a row opens that athlete's training calendar — from that point on, the rest of the app works in the context of that athlete.
Grouping athletes
The athletes list has to answer several different questions, and they do not fit in one table. So instead of a screen twenty columns wide, the roster has view modes: the athletes stay the same, in the same order, and only the columns between the name and the row menu change.