Is it common for front row players (right side) to not to receive as many sets?

My daughter is on a 12s team and switched positions this year and isn t receiving many sets. She isn t the hardest hitter on the team but is a consistent player who doesn t miss often. Short of encouraging her to YELL for the ball more I am not sure what to do. Talking to the coach I think would be a last resort. He already told her to be more aggressive in general.