It is amazing right!?! Two super bowl wins, a lot of great games, two different styles of coaching. Billick has his flaws too, played his favorites, cost us games, just as Harbs.
No coach is perfect, not even Billy B, but just as I like to see player development, I expect a coach to grow as well. Billy B grew as a coach, he is not the same guy who coached the Browns all those years ago. Harbs should grow and so far, he has not, maybe the Super Bowl win so early in his career has stunted him.
Oh I know, he "changed" , willing to truly go running style qb as opposed to a pocket passer. But his ingame has not, Billy B's in game has changed over the years. He manages the game quite differently than he did as a coach for the Browns.