It's just a feeling (or maybe just gas) that at RB this year we're going to need some depth to stay in the hunt all year.  Blankenship doesn't seem big enough to be an every down back...but hopefully has the speed and vision to gather chunks of yards.

Some of our posters who are familiar with him say he has the tools and someof his vids look impressive:

http://www.youtube.com/watch?v=vQ38FHdBFJM