There are.

The rules state:

"7.3 Each EFL Club shall play its Full Available Strength in and during all Matches."

It defines 'Full Available Strength' as:

"‘Full Available Strength’ means the EFL Club must include at least four Qualifying Players
in the ten outfield Players named in the starting eleven on the Team Sheet."

A Qualifying Player is defined as:

"7.4 Qualifying Player means any Player who:
7.4.1 had started the immediately preceding First Team Fixture (as defined below);
7.4.2 subsequently starts the immediately following First Team Fixture;
7.4.3 is in the list of ten Players at the Club with the highest number of starting appearances in First Team Fixtures in the same Season;
7.4.4 has made forty or more starting appearances in First Team Fixtures or international equivalents (and not limited to the same Club or Season); or
7.4.5 is on standard loan from a Premier League Club or any EFL Club operating a Category One Academy"

So all we need is 4 outfield players who fit any of the above criteria and we'll be fine; we could play players like Bailey, Diamond, Hughes, Olaofe, Fiorini who aren't regular starters for us currently so could use the minutes and all comfortably meet 7.4.4