Draft some and bring in some that proved they can play at the NFL level.
Trent Sherfield never did. Neither did Harty. DJ is not the same as those dudes and neither was John Brown.
To put John Brown, who signed a modest FA WR contract, and put up solid numbers as a #1 WR, in the same category of Trent Sherfield, who signed a near vet minimum deal, and had a career receiving total of like 800 yards over 5 seasons, just demonstrates a lack of understanding WR talent and their impact.