The term "advanced" is speaking in relative terms. For the sake of this discussion advanced simply refers to a young athlete who has been playing lacrosse for a few years and has the basic fundamentals down pat.
With that being said, just as with any other sport or skill, you can always work hard and keep getting better. The tips and drills within the link below are for players looking to take their game to that next level.
Click on the attached link for specific skill and team building techniques for advanced players.