There is no such thing as a perfect prospect in hockey. Even Sidney Crosby had some black marks on his scouting sheet prior to being selected first overall by the Pittsburgh Penguins in 2005. He wasn't particularly outstanding in the faceoff circle and he perhaps looked to pass a bit too often.
Those hiccups didn't take away from a player that clearly had boatloads of potential.
While there's no Crosby-esque player heading into the 2014 NHL draft, that doesn't mean that there aren't several outstanding young players available. Sam Reinhart, William Nylander and Aaron Ekblad are all poised to be difference-makers at some juncture.
Like Crosby, though, each and every one of these prospects has an area that they'll need to work on before having a chance at becoming a top-flight NHL player.