So the new narrative now is that he's just good enough to be a squad player whilst in reality, he's been comfortably our best CB ever since we signed him. I think that's still the case as Yoro should be expected to still be a bit raw, and de Ligt has shown he's not as good as Maguire, at least so far.
He doesn't have a "massive salary" either. 190k per week for a CB of his level is more than acceptable. United fans have this fetish where they want to be the best team in the world again but every player should be earning peanuts at the same time. Maguire is one of the best CCBs around, our former captain, a leader in the dressing room, and has proven his level for several years both at United and Leicester.
These are the highest paid defenders in the Premier League according to Capology.
I'd argue that Maguire is right where he should be, especially when looking at de Ligt's and Dias's wages, the two most comparable defender profiles to Maguire across the league.
He's not van Dijk and Saliba level, but those two are in their own tier (both in the league and in the world), and Maguire is one tier below with the likes of Dias, de Ligt, Romero, Stones, etc.
If we want him to stay on reduced wages, we'll need to offer a 2 year extension anyways. That will still cost us more than triggering his current 1 year option on existing terms, unless he's willing to take a huge paycut in exchange for a contract until 2027, but he rightly won't be willing to do that.
Also, considering the player's skillset and strengths, I don't think there are any immediate concerns about physical decline, because I don't think it has set in yet, and even if it does within the next 12-24 months, the drop off won't be that noticeable at first, like it was for Casemiro as one example. I think it's likely that Maguire can stay an elite level defender until 34-35.