Walter Smith has suggested January could be a big month for Rangers with the reopening of the transfer window.
Despite the Light Blues being four points behind arch-rivals Celtic in the Scottish Premier League table chairman Sir David Murray had indicated the club would only spend in an emergency.
But Smith has now revealed he plans to reduce the size of his squad and has not ruled out new arrivals.
"There are 28 people in the senior squad and that is a big staff," Smith told Rangers News. "First and foremost, we must deal with that situation as we don't need that many players and we have to address it.
"Understandably, some of the boys aren't happy they've not been involved as regularly as they would wish.
"In all probability, our staff will be cut down more than anything else but that doesn't stop us from looking at one or two positions we might need to fill as well.
"Obviously, we have to do that in conjunction with people who may leave in the January transfer window."
Striker Lee McCulloch has been employed at centre-back in recent games because of the side's defensive problems, and Smith has conceded that is an area that could be strengthened.
"Defensively, Lee has come in and played in a position where he hasn't really played before except in the reserves over the last month or so," Smith added.
"He has done really well in that area and we are pleased with the progress he is making at the back.
"Andy Webster will also come back to us from Bristol City and that will alleviate our situation there too. We'll see what happens when his loan agreement ends."
Rangers head to Hearts next on Saturday meanwhile, with Kris Boyd fit to lead the line despite coming off injured on Saturday.