The batting line up isn’t any where near the worst in history. We are always told how deep the England team bat.
Yes the opening partnership needs time but England have a huge hangover from the World Cup.
It is very difficult to expect the players to change their mindset from 100% focus on all out attack to 100% focus on building an inning when they haven’t had any practice or game time.
Plus the players are mentally drained, they have been playing knockout cricket since the two must win games at WC, then semi and final.