One of my favorite scouting services does a semi-regular update at USA Today. They talk about the top 10 D for the upcoming draft. Good read. I've read a lot about taking Seimens at 11. Red Line likes him as the 7th best behind other D like Klefbom, Musil and Beaulieu. They are really high on Klefbom and he's likely to be available at 11.