If a player is on a House Team as well as a DS Team, and their jersey number is different for both, the system does not allow you to add two jersey numbers - one for each team.
It will only allow you to assign one jersey number per player to be stored under that player's profile.
However, when the Team Statisician is entering the game sheet, there is an area to enter the jersey number when it's different from the default jersey number.
You will need to update this number each game that the jersey number is different.
The default jersey number should be the one where the player plays the most.