It's just soooo weird. What do you mean they don't have possible candidates on the table?
If I were in their position, I'd constantly seek for some improvement in every aspect on and off the pitch. A professional would have a short-term and a long-term plan for achieving their goals - how to win the league, how to win more trophies, which players are needed NOW and which ones are filling the gaps in 2-3 years time. Same with managers, coaching staff etc.
I'd understand it all if we were a small club - it's quite difficult for Norwich to select the best managers, coaches and players, but we have lots of money, the stature and brand which supports us massively.
Even if they had no clue, just take a look at Redcafe and see what's hot. Gaultier, ten Hag, Conte, Potter, Hasenhüttl, Rodgers and Enrique. Just take a look at football and see which teams are jumping over their shadow or being superb. Nothing difficult, just do some analysis, make contact, tell that you are calling from Manchester United and you can manage in CL, you have Ronaldo, Bruno and Varane in your squad.
It seems like the incompetence and the lack of testicles is just screaming out loud. Glazers and their personnel has wrapped a huge clitoris around this club.