Simms' Top Storylines to Watch for in NFL Preseason Week 2

NFL Preseason Week 2 is upon us and there is much to talk about.

What does Robert Griffin III have to improve on from his Browns debut to instill confidence that he can lead the team's offense? Which team will have to score a ton in order to keep up with all the points its defense will allow? Which Super Bowl contender needs a relatively unknown player to step up at a vital position in order for the team to reach its potential?

Watch as Stephen Nelson and Bleacher Report NFL Analyst Chris Simms discuss in the video above.