Initial level assignments will be determined based on tryout week (completing sprint and distance test sets, willingness to work hard, and ability to be a team member all play a factor.)  Proof of previous times are helpful.  Levels are in no way guaranteed for the entire season they earned on a continuous basis and the ultimate decision rests at the discretion of the head coach.  Generally in order to develop unity there will not be a lot of movement once the season starts.