Everyone knows Burleson is not the greatest WR in the world, but he is still pretty fast and had a good year last year. I don't think he has lost much. Face facts: the Lions badly needed a decent WR2 to take some pressure off of Calvin. I don't see any other WRs who are any better. Boldin would not only cost the Lions a 3rd (or more), he would want a big contract and the Lions would be foolish to tie up that much money in another WR PLUS give up a high 3rd that can be used on defense. Walter is not bad, but he isn't fast and speed is what the Lions are after. Now I hope they can find another fast WR in the draft to put in the slot.
I like the moves the Lions have made. They aren't the flashiest names out there, but they all really improve this team. As far as the contracts, sure they overpaid a bit. But Burleson's contract isn't all that bad.
As for the comments that the defensive line moves mean they might bypass Suh (or McCoy), I'm not buying it. The Lions could immensely improve their line by drafting Suh or McCoy and an improved line means an improved defense.
Now if we could just find some corners....