If you're rebuilding, you take the guy with the highest upside, which isn't Olynyk.
I just think he's a terrible fit for the Celtics and not someone who I think has a ton of potential as a starter. He would have made a lot of sense for some teams like the Bucks but I'd rather have rolled the dice on a high risk/high reward player and I certainly wouldn't have given up a 2014 2nd round pick, which will likely be one of the first in the 2nd round since we may be tanking, to get Kelly.