Michael Sam's draft position depends in part on how fast other defensive ends are selected. Sam is rated by "experts" generally in the mid-teens at his position. Certainly selections are made according to experts' rankings. For example, the New England Patriots selected defensive tackle Dominique Easley in the first round, yet he was NFL.com's 10th-rated player at his position.
For Sam to be selected tonight, it will take a team rating Sam differently from the "experts." It happens all the time, and the Michael Sam draft watch starts in earnest now.