I'll give you guys my take since I was the creator of #TeamOtz.
Otz has 10+ years of D1, power 5, assistant experience under some great minds like GM, LR, FH. He is a very impressive recruiter as shown in all his stops. His wife is a Cyclone Great (for those that follow WBB), and he is originally from the Midwest.
ISU is not a destination for most coaches. Hell, we couldn't get our golden boy, mayor to even stay. From the list of potential replacements, Otz is the most familiar (more on this later) with the program and seems most likely to stay for an extended period if successful.
Sidenote: If Haase was hired or even reached out to, I lose a lot of faith in JP. His team caught fire against some terrible schools in his Conf Tourney and caught the Cyclones on an overall bad day. None of that is even close to translating into "ready for the next level"
Otz had a hand in all the big names to ISU over the last decade. Maybe not so much transfers as that seemed more MA and FH hotspot. The thing about the transfer market is its not a secret anymore. Blue bloods are in on it, and I don't think that would have been a competitive advantage going forward anyways. You have to recruit 4 year players to succeed long term. Enter Otz, who seems to be a player's coach and does wonders in the HS recruiting game. He will continue to bring big time players.
Back to familiarity, IMO, the most important factor for this next year. Our group of players is obviously self-governed and hard working, no matter who the coach. In other words, coaching won't be a huge factor for this next year anyways. A top 10 team is a top 10 team regardless of the coach. I consider Otz's first year comparable to David Blatt (Cav's coach). Learn the ropes year if you will. I know a lot of people are going to lose their **** over that but I don't really care. This team is hungry for a title next year no matter who is wearing the suit and tie.
To bring in an outside person with maybe a different mindset/culture could be the poison pill. We don't need that at all.
Otz is the right choice to me because of reasons listed above. I am fully behind him and excited to see what he can do this year (if everything is true of course). If he fails, I'll eat crow, but I think this is a good opportunity for him to have success, and turn that success into continued success with recruits. He brought in stud recruits selling McD, he can certainly bring in studs if he has a successful year with this team.