The Ton boss is content he has enough options for the remainder of the campaign - especially when all players are fit and available for selection.
One of those nearing a return is Peter Weatherson, who will take his place on the bench against Airdrie United tonight, with the ineligible Lyle dropping out.
Moore, pictured, told the Tele: "There will be no further signings. I can guarantee that. This is the squad I am going to work with for the rest of the season."
"Derek Lyle can't play as you have to be signed before the original draw is made.
"Peter will be on the bench. He's not fit enough to start but we think he is a good one to have on the bench to maybe come on in the last half an hour, depending on how the game is going.
"He is due a few goals and I just wanted to make sure he is fully fit before he came back.
"Once Peter is back he will be spurred on by the quality of the likes of Derek and he has a few good strikers round about him now. There is good competition."
Ton are in action against second division Airdrie tonight in their rearranged Scottish Cup fourth-round match with a trip to face Inverness Caledonian Thistle awaiting the winner.
The Cappielow side - who are also without injured duo Darren Young and Sean Fitzharris - approach the game in confidence following a comfortable win over Cowdenbeath at the weekend.
However, Moore is not taking progression for granted and pointed out a league rival has already suffered an unexpected exit from the competition.
He said: "There are no easy draws in this competition - we saw that with Queen of the South losing to Brechin.
"Cup games are always tough and Airdrie make it hard for teams in the cup, they have a good tradition of that, so we're not taking it lightly.
"But we're hoping we can make it easy. It will only be as hard we make it. We will make sure we go out there with the right attitude.
"We stressed to the players they need to approach the game in the right way.
"On Saturday, we knew the cup was coming up but everybody was just concentrating on Cowdenbeath.
"We had a wee cup final on Saturday as we knew we had to get the three points to get us up the league.
"And the boys have been buzzing in training because they are looking at the papers and seeing they are a couple of places higher up the league.
"So hopefully they can take that good feeling into the cup and get us into the next round."