Kenny Miller is hoping that Walter Smith will be allowed to bring in some new faces in January.
Miller was speaking after Rangers' 1-0 defeat to Manchester United in the UEFA Champions League on Wednesday.
Rangers went into the game with an injury hit-squad, meaning they could only name six players on the bench, four of whom were inexperienced academy graduates.
Kyle Hutton was also handed his European debut, and Miller feels Rangers need to bolster their ranks when the transfer window opens.
"We've seen again how thin we are on the ground," said Miller.
"We struggled to get subs on the bench again and Kyle Hutton has had to come in. James Beattie was called into the squad at the last minute to make up the numbers.
"We are down to the bones so when January comes, if we can get a few reinforcements, that would be good.
"We'll go as far as we can in the Europa League and we know what to expect when that comes along.
"Our main aim is to retain the league and, if a few new players help us do that, then they will be welcomed."
Miller admits that Rangers were disappointed to go out of the Champions League, but were happy to have sealed their place in the Europa League.
"After getting five points from the first three games, we were definitely in a position where we could qualify," he said.
"It was always going to be tough, even after a good start. But we've still got European football after Christmas so we can all be pleased about that."
He feels Rangers could have sealed victory over United, adding: "To lose a game to a penalty in the 87th minute was disappointing, considering we have applied ourselves very well again within the system and only allowed Manchester United very few chances.
"Arguably, we had the better chances ourselves. You know the chances are going to be few and far between so when they come along it is important that you take them.
"With the header, I tried to get a little bit of contact on it and unfortunately it's just been off target.
"With the second one, to be honest, I was looking for a cut-back but there weren't any blue jerseys up beside me. It was more a sea of red, rather than blue, so I decided to shoot."