Help me understand the meaning of Dana DeMuth's explanation of Mike Pelfry's "balks".
Crew chief Dana DeMuth explained that it was a "start-and-stop" issue. As long as Pelfrey kept moving, he could step off the rubber without a problem. But he was coming to a complete stop first and then stepping back, which is an obvious balk.
"You can't do that," DeMuth said. "You have to have some kind of motion still going on coming through the stretch and then you can step off."
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