As I was perusing Twitter yesterday, I came across this tweet from Evan Silva, a writer for NBC Sports and Rotoworld: @evansilva New #Cardinals HC Bruce Arians once compared Rashard Mendenhall to Edgerrin James. Arizona would be sensible landing spot for Mendenhall. The fit makes a bit of sense. The Cardinals may be looking to build on a shaky group of running backs and adding Mendenhall, who has already worked with head coach Bruce Arians, could be a nice start. Then again, do the Cards really need to weigh themselves down with a hefty contract for another oft-injured back? They already have Beanie Wells, who is injured seemingly all the time, and Ryan Williams, who has sat out almost his first two full seasons. Mendenhall will be 26 by the time the season begins and the rule of thumb I usually like to stick by is that I don't necessarily want my team giving a running back (unless they are a special teams contributor/won't cost much like LaRod Stephens-Howling) a second contract. After their rookie deal, unless they are an absolute star like Adrian Peterson, you can let them go.