I believe this is right. Also, bad companies with high attrition like eg. Amazon hire alot more (hires/FTE/year). So you have a higher chance ending up at such

I believe this is right. Also, bad companies with high attrition like eg. Amazon hire alot more (hires/FTE/year). So you have a higher chance ending up at such places then their share of all companies. I mean, average tenure is probably the best indication of how good a employeer is (unless there are few companies at a location). I was pretty suprised to hear it was 2 years at Google.