For guys wanting to draft a player and switch them to a different position, ie. draft a guard and switch him to center, this chart might help in seeing how different ratings affect the OVR for that position.
OVR Ratings Chart - OS News Post
It might save some time instead of changing the position 2-3 times on the chart to see the best results.
Or if your wondering why the chart is saying not to draft when a certain player's 1st skill is a certain one, this will tell you why. When a guard has Impact Blocking as its first skill, you can see that its one of the lowest weighted skills for that position, where as Pass or Run Blocking is one of the highest.