Lamar Miller isn't a guy you want running every play in your play book, but he looks like he could be a genuinely good runjing back provided you had a semi-coherent run scheme and the guys to block it. At certain points you watch him outrun the defense to the edge and turn upfield on a dime and it's amazing.
Obviously I should have mentioned that Sherman is a moron who made zero attempt to mitigate the disaster that was happening right in front of his eyes. To constantly have a RB slam into the interior who are getting their asses whipped was verging on negligence.