For me, it's all about the best player available (BPA) that fills a need for your team. The only exception is QB because the NFL is a QB driven league and you need one to win it all. There are a few exceptions like when you have a dominating defense like Denver did.
Summary: Harkless has become the go-to player on a very young, thin Red Storm team. He does a little bit of everything on the floor and has not even come close to reaching his full potential yet. If he continues to play at an extremely high level during his freshman season, Harkless could be a one-and-done since he would almost certainly be a lottery selection.
Player Comparison: Paul George. Like George, Harkless is a long, athletic wing who can cause matchup problems due to his versatility. Both guys handle the ball well for their size and are extremely dangerous off the bounce, but also have capable outside shots.