Davidson is worth far more to the Oilers as expansion draft fodder....they have to expose and potentially lose somebody.
Not really sure that's the case, he's the 7th D if everyone is healthy, and only is a low cap number for another year.
Last year we had a bad team, so comparatively he did pretty well, but he's only been average this year, though the injury has something to do with that.
Benning has passed him by and will be the cost effective D next year. Oesterle seems a good inexpensive backup option too.
If we're talking about replacing Gryba or Fayne or filling in for injury, sure he's a good option, but our top six look pretty set for next year barring a big trade.
I wouldn't keep Reinhart over Davidson, though, and I doubt Vegas would either, which is the crux.