I don't think the draft strategy rides on Williams' contract.
The Rams drafted Corum while they still had other backs in addition to Williams and Williams had shown well as a rookie.
What I think the Rams will
NOT do is let Williams' agent highjack them The RAms would like to get a fair deal done pre-draft; Rosenhaus will try unreasonably to leverage that higher berfore the draft RB chips have fallen; Snead will not let that happen. FAir deal now, or fair deal later. Ball is in Rosenhaus' court; Snead will be perfectly content to let him stew in his own juices.