<p>I depends on where you applied. At large mildly selective universities, adcoms are assigned files, and they review it and admit/reject people on their own (maybe a quota/cap, no one is for sure but the individual colleges).</p>
<p>At selective LAC’s (I don’t know about highly selective universities with many apps), they assemble the file, and have a conference meetings, spending a little time on an applicant before admitting them or rejecting them, reviewing the file holistically as a team. (</p>
<p>There was a NYT video about this very recently.</p>