Well, you might take the job because you had a generational talent playing DE (it was really more of a 3-4 OLB, but whatever). Don't even blame Eberflus -- he literally had one of the league's best defensive weapons taken from him.
And then, your idiot owner goes all Al Davis and trades him.
Jerry is cash poor, stubborn, and likely showing serious mental decline.
You don't draft a unicorn but once every 20 years if you are lucky. And Jerry screwed that all up by not paying him in year three and then getting all obstinate because he tried to negotiate directly with Micah (which violates the CBA).