This is basically a ratings and roster overhaul of the official site rom.
1. LILB's are often DB's due to the fact that nickel defense is the prevalent formation in the NFL these days
2. REC and PC boosted slightly from Original rom levels given the effectiveness of passing.
3. Ball control much higher than normal levels.
The RE in a 4-3 defense was placed at ROLB since that seems like the most natural position
Pro football focus was the main source for these ratings. Draft slot and scouting reports used for rookies.