Shanahan is going to be in the HofF. He has a great legacy. Nobody's going to ever take that away from him. But in the conversation of being hired, and jobs, and who's done what in what have you done for me lately league, Shanahan just isn't relevant. Teams aren't even jumping at the chance of hiring him. He failed in his last gig at Washington, and there are other coaches with better current resumes right now that's looking for the jobs.
If you took 50 coaches who either coach in the NFL current, or have in the last few years, Shanahan is probabably down around the bottom lower half. He isn't a top coach in todays game, or even average. Dude failed hard in Washington.