I wouldn't give up too honestly, there is still some REALLY good WR's left and a few will be there at 40.
We still have:
DK Metcalf (4.33) (Can make incredible 1 handed catches, also have focus drops)
Parris Campbell (4.31) (can have focus drops)
AJ Brown (4.49) (great hands)
Deebo Samuel (4.48) (great hands)
Riley Ridley (4.58) (great hands)
JJ Arcega-Whiteside (4.49) (great hands)
More than half met with Buffalo over the summer, top 3 guys were projected 1st round picks