The Maguire problem shouldn't exist for England.....because he's not contracted to England. If its a problem you know....don't pick him? Stones is a decent enough CB, Walker can play there if he's insisting on 3 at the back, Tomori just had a great season winning the title in Italy, I'm sure there's one or two others who are a fair amount better than Maguire. He's then got the immortal Declan Rice in midfield, who people keep telling me is amazing. Kalvin Phillips, who people keep telling me is great and actually we dont want him to go to Man City after all. He's got tremendous options at full back. Kane, Sterling, Saka, Foden, Abraham, Bowen, Harvey Barnes, Grealish, Mount, Maddison, Sancho, Rashford, Calvert Lewin, Watkins and Smith-Rowe is a LOT of attacking depth.
People talk about England 'golden ages' but when we had those golden ages, we had good depth in maybe two positions (attack in the 90s, CB and CM in the 00s) and absolute dross elsewhere. Like proper, proper dross.
I agree with this on the whole. Maguire isn't an issue unless you pick him. Stones and Tomori, with Guehi, White, Dier (who had a solid season) and Gomez all as options, then as pointed out, in a back 3 Walker and James able to slot in to a position. They are all capable of playing in a team that is well coached.
England in 04 and 06 had a really good first 11 but nothing backing them up.
Robinson, Neville, Terry, Ferdinand, Cole, Hargreaves, Gerrard, Beckham, Lampard, Rooney, Owen
On paper, that's better than any other first 11 England have put together since 2000. The problem being, as you said, they had to bring on Downing, Jenas, Crouch or Lennon to help the attack if they were struggling. Dross.
This current team has so many options, and while it doesn't sound as good with the players they put out, they can produce a much higher quality balanced team if they had the correct person in charge. I'd say international football as a whole is weaker now too. England should go into every tournament with this "generation" thinking they can get to the semi final at least with a decent draw. Even without a decent draw they'd still only need to beat maybe 1 top team in the knockouts to progress far. I don't think Southgate is the person that can take the extra step in making them win it though.
When his idea of putting out a experimental team is having Reece James at left back, something is going wrong.