Herrera may have a leg up on everyone but Rutledge .
Only Herrera and Rutledge are capable of backing up Tulowitzki if he is injured , but this may be the year that Herrera feels the heat .
Herrera may have a leg up on everyone but Rutledge because only Herrera and Rutledge are capable of backing up Tulowitzki if he is injured , but this may be the year that Herrera feels the heat .