"The squad is massive, it is too big for a club of this size. We can't carry 35 players, it's ridiculous and has got out of hand," he told BBC Sport.
"There will continue to be lots and lots of changes between now and the end of the season."
He added: "I have got about 35 players and they've all got to be paid and fed and clothed and, from time to time, some are staying in a hotel.
"I inherited a huge coaching staff and unfortunately on my second day we had to make some changes and I had to let some people go because we were vastly overstaffed and it was costing us a hell of a lot of money.
"The most important thing is we try to pick up as many points as we can and not worry too much about the off-the-field problems we have.
"But I'm having to address that side of it as well as trying to win matches on a Saturday."