Often times, tt players will wrongly associate ratings with skills.  Just because an opponent has a certain ratings doesn’t necessarily mean that your opponent can do this or can’t do this.  For example…
 
I asked my 1800-rated student why he wasn’t attacking his (2100-rated) opponent’s half-long serve.  My student responded by saying that because his opponent was rated 2100, he assumed that all his serves were short.
 
I asked my 1200-rated student why he kept hitting to his (600-rated) opponent’s backhand.  My student responded by saying that his assumed that all low players have weak backhands.
 
I asked my 1700-rated student why he kept trying to smash every ball against his (2300-rated) opponent.  My student responded by saying that he assumed that he probably couldn’t return any balls anyway and decided just to go for high-risk shots.
 
These hypothetical illustrations are used to show that you can’t assume a certain set of skills is used by certain player levels.  You must take each opponent individually instead of categorizing players by rating.