There's no way Carlo Ancellotti is taking this job. Nobody with any sense or reputation is taking this job and as was pointed out above managers with real options don't take NT jobs. As useful as it would be to poach a big name and immediately re-inject some credibility into a program that just lost a ton of it last night, it's not a realistic outcome.
I think in the immediate term we're looking at a complete reset. Which is crazy unfortunate because we're going to waste almost all of Pulisic's best years. But the USMNT lacks talent and I don't think a massive change is on the horizon in the next 8 years. We need a technical director who continues to preach and drive toward additional technical players but we probably need a system manager who can drill a team of relatively mediocre parts into something more dangerous. Which is always hard to do at the NT level, but is probably the only realistic approach. It starts, to me, with the idea that outside of Pulisic we have no stars. Bradley, Altidore, Nagbe, Wood, Zardes etc etc are all more hype than substance at this point. We need a manager who can see through the bullshit and actually determine which XI is most functional and most likely to get results.
I was more enamored with the ideas put forth by Klinsmann than most and it pains me to see the US playing such awful football. I was against Arena when he was even being floated for the job toward the end of the JK era. But the problem for both managers was the same -- we have very few parts who are as good as their reputations and as a result we're not headed to the WC. One thing I would like to see in the next manager, however, is a tactical awareness. I think playing the Hex and Concacaf is a very tactical exercise. Some teams will open up and try to play, some will thug it out, some will sit deep. There's probably more variety in concacaf than there is for most european opposition at this point (completely made up point, possibly wrong). A manager who can try to understand the approach of the oppnent and change the setup to the needs of the match is an important skill we've likely lacked for a long time. I appreciated that Jurgen wanted us to take on more of a "FU, we're the USA, we're coming to your house and we're going to shove it down your throat" kind of mentality and agree with him that we need to get there. But the only way to get there is to relentlessly beat these opponents and for the last few years this has proven far too tricky. With struggles against Panama, Jamaica, Trinidad, Costa Rica, Honduras all relatively recently there really aren't any teams coming up against the USMNT expecting to get slaughtered anymore.