Coaches use Functional Practices or Phases of Play to break the game into smaller parts. Both are unrealistic as the defending team has little to no incentive so retain defensive shape when in possession. Conditions are often placed, e.g. '2-touch' to focus on an aspect of play. However, most conditions have side effects, affecting realism and often have the opposite affect to the intention. E.g. limiting players to 2-touches is intended to speed up play. Instead, players usually stop their first touch so they're not rushed into a pass, which slows play.