Been a Duck fan since 1966.  All those bad, bad, bad years and last few pretty good ones.  Coaches are judged by the teams they Recruit, Train and Win with.  

Helfrich has failed in all three of those aspects of his job.   And he is responsible for those he hires with almost total discretion on offense, defense and special teams and how those coaches Recruit, Train and Win with.

He gets paid big money and even bigger money as bonuses for truly excelling.  

He is subject to being fired for failing.