NFL free agency and team-building never end.
"It's a 12-month process to build this roster," Buffalo Bills general manager Brandon Beane told reporters in March. "We have to make sure we have the team the way we want it [in September]. ... There are plenty of times where guys come available after the draft, in June. ... So we still got a lot of time."
Organizations exhaust all options to improve, but opportunities are scarce. Every franchise enters the regular season with concern areas due to roster and talent limitations.
Of course, teams can still pursue big-ticket free agents like Dez Bryant and Adrian Peterson.