Instruct: Classify the given review into positive or negative sentiment.
Query: From the Author

Develop and implement this attacking system played by top clubs Ajax and Heerenveen and the Dutch National Team, as well as 90% of the youth teams in Holland. This DVD shows how to build this offensive system of play in your team and the adjustments to be made when the opposition has possession through clear diagrams, choreographed sessions and game footage. --Reedswain