In fantasy football, being in the right place at the right time can be very, very rewarding. Take, for instance, MyFantasyLeague's public leagues so far this summer, just behind don't exactly love Adams as a college prospect, but in all of the pre-draft research and prognostication, one name consistently arose as a comparable for Adams: James Jones. The Packers clearly saw things the same way, and replaced their sturdy, reliable set of hands in the red zone in Jones for a younger, more explosive version in Adams.
But the hope that remains for Boykin is opportunity. Both Nelson and Cobb were second-round picks, like Adams, and neither saw a great deal of work as rookies. Cobb caught only 25 passes, while Nelson caught only 33 in their first years in Green Bay. So while Boykin is not as efficient as Cobb or Nelson, and isn't as athletically talented as Adams, he still stands a chance to play alongside one of the most productive quarterbacks in the NFL, and that's an opportunity worth taking note of. Aaron Rodgers finished as the fifth-best quarterback using Passing NEP data last season, and that's despite dropping back to pass only 311 times. Not that you needed any numbers to prove just how good Rodgers is...
With that said, it's not the time to buy into Boykin long-term. The opportunity should be there to pick up the scraps of the Green Bay offense and provide some fantasy value as a third receiver in a great passing offense, but there's tons of competition on the horizon for Boykin. Don't be surprised if Davante Adams or any of the other rookie receivers for the Packers (Jeff Janis and Jared Abbrederis) overtake him due to their superior athletic profiles once they've digested the playbook a bit more, but feel free to enjoy Boykin's productivity while he remains high on the depth chart in Green Bay.