Everyone's seen the time-lapse videos, but what really goes into flipping a stadium from one sport to the next? This week, we get down and dirty with Clay Wood, Head Groundskeeper of the Oakland Coliseum, as he oversees the transformation of the A's baseball field into Raider Nation. From moving 24,000-pound slabs of concrete to dropping in the seats for the "Black Hole," we get an inside look at how the last dual-use stadium in the country gets flipped for game day.