number of players on each team

Guys,

I play on the Xbox1, and I recently have been having a serious issue with unbalance because of the number of players. 

I have had multiple games start when it was 5 on 3. This issue is caused by the fact that people get to switch teams. The game will start 4v4 and then one guy switches to the other team. 

In my opinion you should not allow team switching at all much less when the teams are at the same number of people.