Not sure what you're trying to say here. The higher grades are due to grade inflation; this process has been documented pretty thoroughly.
But...but...if you are only selecting the very highest quality student, they should all have higher grades!
I mean, if there is a deep pool of Top Shelf students, manufactured using the highest quality craftsmanship, coupled with modern technology and quality control procedures, who is capable of getting an A+ in all classes...and you fill your university with only this Top Shelf student, then the average grade will, by definition, be an A+.
What am I missing?
