I'd think the trade is pretty close.
Hernandez is superior to Lawrence this year.
So, I think the higher free agent pick goes along with Lawrence.
I agree with the post that would adjust the FA pick going back with Hernandez should be higher...but not too much.
I'd think...
Hernandez/FA6 for Lawrence/FA1 would be somewhat better.
Overall, however, I don't see the trade as too unbalanced.