Holt came off the bench again to score the winner against QPR — the third time he has done it this season.
And he said: "Of course I want to start, but in this division it is a squad game.
"No one ever plays 11 men for the whole season — it's too physically challenging. That's why the manager brought in a lot of bodies in the summer.
"We have people like Zak Whitbread, Daniel Ayala, Simon Lappin and Adam Drury in the stands — that's what you need."