Question: The 2010 Washington Redskins Trent Williams was considered one of the best tackle prospects available for the 2010 NFL Draft, who was the Head Coach of the team at that time?
Sentence (from "2010 Washington Redskins season"): The Redskins obtained the 4th pick in the 2010 NFL Draft as a result of their 4–12 record from their previous season, which they used to draft Oklahoma tackle Trent Williams.
Relevant evidence: No