I would use the many small sided games on this website. Practice alot of one v one. If you feel pressure to win, then work primarily on defense at practice and focus on defending with your best players during matches. Always be strong up the middle. Drill number 6 in the drills archive is a good simple drill. Baseball always affects Spring soccer. As a coach there is nothing that you can do about it except enjoy the kids that you have. If you lose too many games by a 12-0 margin, then the way that your league allocates players is flawed and needs to be corrected.