Goucher looks to be 15-20 lbs too heavy. I'm not sure if he is lifting too much or if it's just genetics and there is nothing he can do, but he was BY FAR the thickest guy in the 5k.
He'll never be a world beater (or even a solid national runner) if he continues to carry 15 - 20 extra lbs around the track on every lap.
I'm not sure his true height and weight, but I'd guess 5' 9" and 150. He should be racing at about 133-137 (at most) at his height.
I know a bunch of the guys from the 2000 5k who were a few inches taller than Goucher and 10-15 lbs lighter than what he looked last night.
Beach Bod or Good Runner - it's tough to have both.