Saints sign Chase Young to 1-year deal up to 13M (2.7M base, 1.86M signing, 450K workout, 7.99M total gameday roster bonus)

key phrase was “unless he balls out for 17+ games”.
"balls out" is where I was a bit confused as to what you are saying. He benefits from playing (more accurately, being on active roster). He also gets some portion of money guaranteed regardless as well as protection from being released.