Is Head Coaching a full-time job?

C'mon look at your own post Harbaugh was a TE coach @ Pitt a FBS school. And a DBs coach @ Indiana a FBS school. I never said that you can't be primary a ST coach and not be a good HC , I said that I think a good HC needs experience at a high level on either the offense or defensive side of the ball, which Rizzi does not have.
Experience at a high level as either an OC or DC does absolutely nothing in terms of coaching. Most coaches fit your mold and quite honestly, most suck...lol. You should know the sport that you are coaching.

And you are touting Harbaugh being a TE Coach at Pitt (a job he only got because of his dad was the assistant head coach) and a DB coach for a 2-9 football team? lol.

Rizzi has been a HC at New Haven an Rhode Island . Yeah these are two powerhouse college programs. Really Jahsoul??? Brother you know better. And that ast HC title is just so we could hire him away or keep him from being hired away
What Belichick loves more has no bearing on this topic.
The best HCs have experience coaching successfully at a high level in the NFL or major college on offense or defense. They have to be very good @ X's and O's along with being a very good motivator
You keep talking about being very good X's and O's but this is not basketball where the coach draws up plays on the sideline during a timeout. A coach should understand the game of football but your viewpoint only stems from the fact that traditional hiring has been

Also, if we are being honest, it sounds like you are speaking from a place of not understanding what all goes into special teams. Blocking techniques, gap concepts, angles and attacks. Special teams is both offensive and defensive. Not to mention the fact that you are coaching players who are on both offense and defense.

The way you are thinking is why we have so many bad coaching in the NFL now.

I also found a blog on the topic from 2 years ago...interesting read and look at who is specifically called out.

https://www.the33rdteam.com/study-c...teams-background-have-been-highly-successful/
Let's keep Carroll in the conversation. Yes he's a great motivator but very good at X's and O's as well. and he failed as a HC before in 2 NFL jobs even before USC. The fact of the matter is there is more to being a great HC than motivation you need to be very good @ X's and O's to be a success in the NFL. But it's more likely that a HC can be successful being great at X's and O's and not so great a motivator like Shanny or Reid
Did Pete Carroll really fail? He was fired after 1 season in NY by the owner after a 6-10 season. The coach that the owner was so ready
It is also said that Pete was too nice for New England...haha.

Pete was a great defensive coordinator but Pete also because a "CEO" coach and hired good people around him.