This season, batters must keep at least one foot in the box throughout an at-bat or it's a strike; with the bases empty, pitchers must not wait more than 12 seconds between pitches (once he has the ball) or it's a ball; no more stepping into a dugout to catch a foul ball; and no more tie games that are suspended because of weather being played over -- now, they'll be resumed from the point of stoppage.