I somewhat agree...the physical attributes shouldn't change; I mean a player shouldn't lose any speed, agility, strength etc. in moving a position. But for some reason in the game, if a player changes a position, his awareness changes to as if he's a freshman...
That's why I think there should be a composure as well as experience rating; that way if a WR is changed to a DB his senior year, he still has a lot of experience & composure regarding the game itself, but his skills (man/zone coverage, tackling, pursuit, etc.) for the position would decrease his overall rating