Starks' emergence could change how this backfield looks the rest of the year. McCarthy initially planned to have Lacy and DuJuan Harris as a 1-2 punch. Perhaps it will be Lacy and Starks, once Lacy is healthy. McCarthy must be tempted to rest Lacy with a Week 4 bye coming up. McCarthy also indicated that rookie Johnathan Franklin probably will get some work this week after improving in practice.