Building a Positive School Culture

Our school is having some problems with high schoolers coming to school "High" during lunch. There has also been alot of basket ball players that had good grades during there season but now after there season was over there grades had dropped. I think the only way we could make this school alot better is move the school to a better location some where that is close to there house so they can't go and do drugs. Or they can't go any where during there lunch they can do activities during there lunch. I think this would make the school alot better.