Two things that get frustrating for a user when they are in the game and searching for players and setting their team are the following:
1: When searching of players, if the search settings and filters could remain stationary at the bottom of the page, that would help in micro movements. Currently, if you end up with an empty player list, the filter options will move to the top of the page, and will keep moving from then on.
2: If there is a way to 'change' the way depth charts are set and previewed to make it more user friendly. Currently, you will set a 4-3 formation, view it, then view the equivalent 3-3-5 formation and suddenly, the edge is the nose tackle, the DT1 is the edge and the dt2 disappears.
A much simpler method would be to be able to set the formation through the view formation screen, by viewing the formation and having a drop down next to the picture and selecting the player you want in the position, rather than clicking back and forth from the view screen to the depth chart screen.