LenDale would be a good fit for the Broncs, but I can't see them using a first round choice on a RB with their needs elsewhere, but if he is the highest rated player on thier weighted board in April, who knows.
Hard to tell right now if M Bush will last into the 90s. The real evaluations have not started yet. Coaches and GMs are still concentrating on the season. Bet if you walked up to Shanahan right now he could not tell you the difference between Michael and Reggie Bush.
I do think RBs will be devalued in this draft due to the glut of good ones already in the league, the number of Fas and the number of good backs in this draft. There may be some bargains in rounds 3+.