Pitts ,Chase and Waddle in my opinion....I think Smith is a trade down.if smith was your only target, stay at 3.
no guarantee he will be there at 12, let alone 6 (although he should be).
you only do what we did if there's a group of 3 you want (probably chase - pitts - unknown).
i'm not certain smith is the unknown, but he might be.
I think at the time of the trade they thought they had a much better chance of landing Pitts(just my opinion).
It nearly impossible they have them all graded equally...nobody else does!