Hernandez enjoyed a first Barclays Premier League start against Fulham on Sunday. However, the manager admits his side are yet to fully exploit the new signing's quality.
Ferguson told MUTV: "I think we've still got to utilise Hernandez's pace a bit better. I think there were moments when we could have threaded a pass through but took the option of passing it wide. We just have to get used to that part of his game, but he did fine."