But schools rarely dig down to find out what really makes an

But schools rarely dig down to find out what really makes an applicant succeed,to creat a class which also contains diversity of attitude and approach--arguably the only diversity that,in a business context,really matters.
句子中 to creat a class...是什么成分了?to creat...之后是说 really makes an applicant succeed 的原因,为什么可以直接加在后面了?
还有哦,of 后面可以加句子吗?像 for 那样