I say this from a neutral (Welsh), stand point, but this is the systematic failure of English football. Having watched the Martinez documentary, it's clear that the whole of Belgium has bought into his long term project (I think they even mentioned 2026 as their target year). They expect some immediate, relative success, but they're happy to understand the peaks and troughs of football and that it all works towards a bigger picture. England are world beaters one minute and garbage the next - Kalvin Phillips being a prime example of hero to zero mentality. These young kids with the big and exciting future gave everyone hope in 2018. They've been given 3 years and 1 tournament before being written off. At least give them the benefit of the next world cup.
As far as the game goes, it was drab with limited quality shown. Scotland worked hard and actually played some decent stuff. England's love of holding midfielders and refusal to take risks didn't allow them to find that extra kick that they needed to put Scotland on the back foot