For the last few weeks, a number of starting RBs have gone down and their backups have usurped them. DeMarco Murray, MJD, and Donald Brown come to mind, to name a few. Needless to say, I've watched as several teams in my league have faced impossible situations as they struggle to fill in holes with a dead-last waiver priority, and it makes me consider my own team's future.
Going forward, if your starters are both studs (assuming you start 2 RBs and don't have a flex position), could handcuffs be all the depth you need? For example, say I have Ray Rice and Ryan Mathews as my starters. But I also have Donald Brown and Vick Ballard. Once I'm passed the byes, would it make sense to replace Brown and Ballard with Jackie Battle and Bernard Pierce (or if you have Turner, Jaquizz Rodgers, etc) and charge through the home stretch depending on a team's running scheme? Or is it better to diversify and keep someone like Brown (or Alex Green, Dwyer, etc), even if it means rostering backs on teams that lack a strong running game, for the sake of trades or tempting matchup plays?