i think naruto will have to take another chunnin exam, but if they just skip it and make it quick and funny, it will be ok....
teams of three doesnt matter because sakura is a chunnin isnt she... there is a way because every year the test might be different
if the hokage or people can just promote whoever they want then what is the point of the ninja class then....
if they do it then the ninja levels to me wouldnt be as prestigous as they made it out to be....
the exam test your ability to think and act like a leader, not just how strong you are....