The 49ers bet big and early on Aaron Graves, 56 picks ahead of the board. Bold does not always mean right. It washes out to a C, no better and no worse.
They punted on offensive lineman, and it is the miss that keeps the grade honest. They left with interior defensive lineman solved and the rest of the wish list mostly ticked off.
Building through the lines is a philosophy, and they stuck to it.
If Aaron Graves and a couple of the gambles land, hindsight will be kinder than this grade.