I've talked to the president about it (I am friends with our president, who is also a sophomore), and she agrees that the girl is too large to ride most horses, but is unsure of how to go about booting her from the team. I am supposed to talk to her about losing weight, as I am the only member who has weight loss experience (weighed 260 lbs at 5' 10" ish in 6th grade, lost 110 lbs by 12th grade via calorie counting [my parents thought I was anorexic when I started counting calories...]. Now I am 150 lbs and 6' tall). I just have to find the right moment to talk to the thing about it. At this time, she really isn't causing our horses much harm because she barely rides once a week (we are supposed to find time to ride AT LEAST once a week, preferably twice)  and never goes above a trot. Thank goodness for our shitlady coach.