During the first lesson with a new student, I often ask the following question,
“Which areas of your game are you trying to improve long term and what measures are you taking to improve those areas?” 
They usually respond with a short reply like…
“I’m working on losing this fat belly.”
Or
“I’m just trying to perfect my forehand, that’s all I care about.”
Or
“I just want a serve that no one can return.”
Usually their answers are very short and not detailed.  They want to improve, but don’t have a plan.