QB Kolb, CB Irons face tests

It's important to take care of business when facing a weaker level of competition, and players like Pittsburgh quarterback Tyler Palko need to carry the momentum from last week into this week. However, scouts are really looking for how well a player performs when he faces a worthy opponent.

This week Houston QB Kevin Kolb (at Miami, Fla.) and Auburn cornerback David Irons (at South Carolina) both face tough challenges. Though there is still plenty of football left to play this season, how they perform in these specific situations will have a significant impact on their current draft status.

Here's a look at what we've seen so far from these 15 prospects:

QB Chris Leak, Florida