True on both counts.
Jim Harbaugh was pretty tough, even if he did break his hand punching Kelly. Always struck me as a guy who got the very most out of his physical talents. There were probably hundreds of guys his age who had better measurables growing up, but didn’t go as far as he did, and it was easy to see why.
Herbert isn’t as tough as Harbaugh was, let alone a bunch of others I could name just from Harbaugh’s era.