This has been discussed a number of times in the past:
http://talk.collegeconfidential.com/massachusetts-institute-technology/1724688-recruiting-for-athletics-mit.html
http://talk.collegeconfidential.com/massachusetts-institute-technology/1183292-mit-athletic-recruiting.html
http://talk.collegeconfidential.com/massachusetts-institute-technology/950656-mit-recruited-athlete.html
Coaches have very little pull with admissions. They can express support for a recruit, but there are no athletic “slots” and they do not present or sit on the admissions committee. The admissions staff is very up front about this. I’m very sorry if you feel your student was mislead by a coach and especially if your student missed out on other opportunities.