[testHNac]

So how does this effect the employability of students from these Colleges ?

I am assuming here that a combination of College, Degree and Grades determine the student's job prospects.

Now an employer might value students from a particular college less as they don't have grades.

Of course, everything comes down to student's actual capabilities. But then why should a Degree from a college be required for a job when grades aren't necessary.

One could simply do courses for a lot of professions, learn on their own and apply to a job. May be after some professional certification that's not tied to a degree. Note - Not applicable to things like Medicine or Engineering, but can be to may other professions.

[musicale]

If you graduate from an art or design school your portfolio is probably more important than your grades.

I imagine a Ph.D. graduate's thesis and publications are quite a bit more important than grades.