"We haven't defined any roles," Williams said. "What we do know at this point is that he is seeing the ball well and he is playing well. I like his at-bats. We are giving him as much time as we can in every aspect -- starting a game, coming off the bench as a pinch-hitter, everything we can possibly think of to get him used to everything.
"We haven't defined those roles yet because we just don't know. We don't know about Yunel [Escobar]. For that matter, we don't know about Anthony [Rendon] either. We are just letting Dan play and make sure he is getting plenty of at-bats. When the time comes, we will make the decisions."
Bill Ladson is a reporter for MLB.com and writes an MLBlog, All Nats All the time. He also could be found on Twitter @WashingNats. This story was not subject to the approval of Major League Baseball or its clubs.