Some funding agencies restrict the number of proposals an institution may submit to a particular funding program. These opportunities are referred to as limited submissions. Some programs are limited by the institution (i.e., X proposals allowed for the entire university), some by campus, and some by school.
If a university submits more than the allowable number of proposals to a limited submission opportunity, all of its proposals will likely be disqualified. That is why it is imperative to follow the internal application/peer review process and secure proper authorization from the university (and, in certain cases, your campus, school, or department as well).