The lines were more to flesh out that we have enough bodies to get through the remainder of the season, if we were to sell off Ewles or Horner, Smyth or Sirman, Stonehouse, and Kelly, and add a cheap OA centre. It looks like there are sufficient bodies available provided our injury issues abate.
You raise a good point on Houben, Yanni, Dietsch, but from what I'm hearing those guys will be with the 67s for the remainder of the season (there are obviously pros and cons to this approach).
If Boyd does as OMG67 alludes to being a realistic case above (replacing an Import, adding an OA, keeping Stoney), we'd be basically treading water this season and probably next season too. We'll be a lower-seeded playoff team. Getting playoff reps for our players is a good thing, but in my mind we'd be kicking the can down the road. I think the bolder choice would be to cut a bit deeper this year and look to secure a top-8 or so draft pick and kick-off a rebuild (or whatever you want to call it).
I think we should strongly consider selling Mayich and MacKenzie, in addition to Stonehouse, Ewles/Horner, Sirman/Smyth, and Kelly.