Making the Grade

With it being draft weekend all of the analyst are grading how the teams did and giving out grades. But do these grades really matter when these picks wont show how good they are until they are in the league for a few years. Yet the same for presidents approval rating. Usually when they come into the presidency they have a high approval rating, but is it a good rating on the president. When it will take a few years before you can really say if they were a good president or a bad one, just like how it takes a few years to tell if some rookie will turn out to be a superstar or just a bust.