The big take away--D.C. United are still talking like this is a trial. Olsen's comment was essentially credit to Charlie Davies for coming to try out, most guys wouldn't do that.
The video has glimpses of Charlie in training games. He is moving well but hard to judge whether or not he has that speed he once had.
The trial ends at the end of the week, so we will see what happens, but I suspect that Charlie is going to be looking for a place to rent next week in the DC area.