Thought I'd post up suggestions as I play through it.
Number 1 - Player Creation
It felt too open - which is great in itself, but maybe another option could be an enjoyable experience too?
One that's more restrictive in it's nature.
I've mocked up the opening screens.

So you get to input name, college, nationality and select a player image from file.

Which would take you onto the next screen, where each drop-down impact the next and overall of the new creation.
Position, QB to K.
Prototype, option specific to position selected.
Height & Weight, determined by position and prototype selections.
Prospect Grade, Hall of Famer to Good Backup. Final selection which determines starting attributes, displayed in radar chart.
Draft Projection, predicts round and pick position.
NFL Comparison, names a current or HOF player.