Ben Tate has been ineffective, and whether you ascribe that ineffectiveness to the poor line play post-Alex Mack or due to his lack of talent, something has to be done. Some pundits are calling for Terrence West, but my money is instead on Isaiah Crowell as the presumptive replacement.
Much like Jerick McKinnon over Matt Asiata for the Vikings, the former Bulldog is by far the more dynamic player of the two analytically.