Maguire is a very good player and will be a very good signing for Man Utd. Actually, so will Wan-Bissaka. Yes the fees are inflated and funny but sometimes, especially when you're a shitshow like Man Utd, you have to pay whatever it takes to get players who are willing to join and make a leap forward. They couldn't get any better than Maguire. Could they sign Koulibaly or De Ligt? Maybe the former, but I doubt it. It's far easier to sign players from non-CL teams.
What they are doing signing younger British players will be good in the long term, but Maguire is an established player. Man Utd can afford big fees despite being shit for years so they will do it if they have to. Of course they are lucky in this way that they play in the Premier League, because the money keeps rolling in. Anywhere else they'd be struggling even more.
Does make me laugh all the reds talking up the team again like they mean business and there were reminders of old United. We'll see when things are actually tough and they face some experienced teams, Lampard's selection was like something a fan would pick going for young players, but his hand was forced a little. Also, on most other days they'd never get a 4-0 win in this game.