No buds as yet?
I had planted this pin oak tree early last fall, with leaves on it but was put in the ground near a cut down but still rooted/ground down Maple tree. This is mid April and I do not have any buds for leaves as yet. Do they come out a little later?
Pin oaks are just starting to bud. Monitor and look for new growth. You can scratch some branches with your fingernail and look for green tissue, If you see it, the branch is viable.
Oh the tree trunk is green all right, so I'll wait, thanks.