Is it a good idea to start both ronnie brown and ricky williams on my fantasy football team?

I have ronnie brown and ricky williams on my fantasy football team as of this week. im lookin for some advise on if i should start ricky williams with ronnie brown who is definately going to start. I also have frank gore who did nothing today and Ladanlian Tomlinson who scored some points but still no touchdowns. I just dont know if it would be worth it cuz they split downs and it usually results in ricky williams not doing as much as what a full time back would but he is still puttin up numbers.