We know why it was made. The point is that it wasn't a guarantee that it was going to transform this Oline any way. Not this season, so we could have continued to build up the Oline with He has O'brien coaching him. His learning curve is likely to be his own with very little effectiveness and tutelage through the staff unfortunately. It isn't just the players on this offensive line. Its the coaching on that specific part of the game is just bad. Carolina has a solid defense and their secondary likely had the receivers guarded really well making it harder for Watson to know where to put the ball.