There are expressions we use too much, in sports and in life, and today's is "make-or-break."
As in, "Is 2019 a 'make-or-break'' year for Kirk Cousins in Minnesota?" Of course it's not. Obviously, Cousins could do himself harm in the minds of Vikings fans if he doesn't have a good year. But a bad year cannot "break" Cousins or his Vikings career, because no matter what happens the team will owe him $29.5 million in guaranteed salary in 2020. Try moving that deal to another team, especially after a bad year!
That said, there are some NFL players for whom this coming season really is a make-or-break one -- players whose time has come to cash in on their talent and opportunity or look for work elsewhere in the 2020 offseason.