I don't think Songaila keeps the spot as pernament, because of Sweetney, and Skiles never had a regular, all-the-time starting line-up last year. Not saying Sweetney gets it, but they alternate. If Lynch is brought in, Barnes goes back to the bench obviously. But I'd say Barnes stays there for now, since Larry has said he doesn't want to use Q-Rich at SF. Though I think it's possible Barnes/Ariza will altnernate, as Larry likes Ariza too.
The bench guys we had are getting more minutes, simple as that.