To sum up what everyones been saying;
Excellent grades + Experience > Workforce.
Excellent grades > School.
Excellent grades > Workforce.
Good grades > School.
Good grades + Experience > Workforce.
Bad grades < School, Workforce.
As i said in my first post though, in School you need etiher good grades and the certifications/qualifications, or luck.
In the workforce is good grades and experience, and some luck.