Yes you do. And I expect Plumlee to be better than Hans. That's not saying much though. I don't see Plumlee as being that much better defensively, much worse offensively, but a much better rebounder. The most positive news is that Plumlee won't get blocked in the post all the time or through up complete crap shots trying to sell he got fouled.
Pacers are pretty damn solid everywhere but backup PF. Pacers will have the best bench in the least, so that should be ok if we are weak at PF.
West, don't you dare get injured.