Prop Challenge, Day VI — Over-Under on LeGarrette Blount’s rushing attempts: 13.5

Leading up to Super Bowl XLIX, we’ll take a closer look at one proposition bet per day, something we’ve dubbed PFT’s Prop Challenge. Here’s the idea: we present a prop, do some light analysis, then let you decide which side to take — hypothetically, of course. (Previous examples are at the bottom of this post.)…