They don't really have an option, Center is easily their weakest position and they have far too many scoring wingers.
Bouwmeester isn't going anywhere, he's their undisputed number 1 defenseman.
As for Stajan, this is a pretty important season for him, he'll either step up and push one of the other Centers out, and or he'll wallow in mediocrity and eventually be bought out.
Both players were horribly mismanaged by Brent Sutter, so it should be interesting to see if they return to their offensive selves this year under Hartley's new offensive-minded system now that they won't be forced to play shutdown roles.
I'm hoping with the new coaching staff and new system, that both Jbo and Stajan will put up some decent numbers, but time will tell.