Following up on Zorilla's comment in this thread, I took a quick scan of basestealers against for each of the starting pitchers. The data is from Baseball-Reference and here are the results (Note: SB2 means how many steals were of second):
Jeff Niemann almost has more steals against him than the rest of the rotation has attempts. He's no Chris Young, but when a moderately quick runner reaches, there's little deliberation needed whether or not to send him. The players who have successfully swiped a bag off Niemann this year:
Orlando Cabrera (twice)
Denard Span (twice)
Brian Roberts (twice)
Jacoby Ellsbury (thrice)
The hall of shame, otherwise known as the caught stealing crowd:
Maybe Niemann is simply a prankster. Nobody can catch Ichiro then proceed to let Bay and Cabrera steal on them, right? Right?