Unfortunately, we all know kids who were qualified who didn’t get it in. Hooks are extremely important, geodiversity and recruited athletes and URMs. The best chance is to cast a wide net, not just apply to a bunch of elite schools. For those who don’t get admitted, the good news is for most students, you can reapply. Have the student try to get feedback on their apps, and plan ahead. Nothing wrong with reapplying for 9th grade or 10 or 11 grade admissions.