Coaches might look to use this formation if he finds the turnovers in the game to be frequent and challenging. Having a solid lineup of midfielders may be beneficial to managing turnovers and gaining back possession of the ball.
Since there are only three defenders, be sure to properly space yourselves out and help out the midfielders if where they hold their line changes.
To successfully defend a 3-5-2, the team will need a strong midfield line. Since a lot of play will occur within the 5 midfielders, it's important to have an opposing midfield line that can jump quickly between defense and move the ball to their end of the field as offensive players.