Dont get me wrong I dont want Giggs or Neville either, I was just trying to emphasise there is little difference between the 3 of them. If anything though Giggs has more experience than Unsworth having been Man U managers for 4 games and assistant manager under Van Gaal for ages, hes also knows what it takes to be the best.
Unsworths record with the U23s is good but hes also had previous goes at being manager, albeit temporary at Preston twice and never got offered the job on either occasion despite having been coaching there you a number of years!?
Neither had the management experience Unsworth has now. Over last 3 years, Unsworth has managed under 23s and won trophies, Neville and Giggs were pundits, owners and did nothing in a managerial position, just coaching.
Giggs had a total of 4 games in management, struggled with pressure and became assistant manager, then talked himself out of the Swansea job.
Neville took over Valencia and was giving Koeman's record a run for his money. But he came through English coaching as far as I'm aware, he was doing punditry, working on his club project, tv show, coaching for national team.
Neither were actually managing a team and when it came to doing that, they failed miserably and given development route it's not surprising.
While I can list lots of successful promotions of youth managers across europe, hard to think of ones that have gone from long term assistant manager to manager and been success.
I'm not saying assistant manager is bad experience, but it's no place to dwell for an aspiring manager, you're out the game, don't have the authority, responsibility or risk. People like Shakespeare that people like to reference had 9 years experience as assistant manager. I think they can tweak some things at start, but then they no longer have much of a plan to improve or develop beyond that.
The most popular choice on the list Tuchel, came through after several years as youth manager at Ausgburg and Mainz and has just left Dortmund after 2 years, due to disputes with board.