I think Undrafted Free Agency is busy long before the Irrelevant One in the draft was announced.
The fact that BBC, K.J. Maye, Thieran Cockran, and Peter Mortell signed with teams in a matter of a couple of hours after the conclusion of the draft tells me this even more critical for teams than I imagine.
There are only so many players that can be drafted. On a given year, you may have a glut of very talented players in positions like CB or OL that were often overlooked. They did not grade well in the evaluations, but are gamers. Some played in unheralded teams and did not get a chance to shine in the spotlight of college football.
This will provide fuel for these players who are given a chance to shine. Some of them may even supplant drafted players similar to the PWOs in college.
The Vikings have an inside track on the Gophers for UDFA as they are just right across the river even though they did not have a fighting chance to draft Eric Murray, Rashede Hageman, or Maxx Williams on any given draft year.
I did remember hearing how impressed the Vikings staff were with how polished, polite, and fundamentally sound the Jerry Kill Gophers/Claeys football players were that they have interviewed. They are making men out of football players at The Bank.