The Lions have a number of players whose current deals are up at the ned of the season and Cahill believes that the uncertainty is affecting their game.
"There's quite a lot of lads up soon", said Cahill. "And it would help the morale of the team knowing where their future is going to be.
"It is understandable the chairman worrying about his back pocket but it is also understandable if the players start looking elsewhere.
"They are in the process of sorting it out. They need to do it quickly. After the contract situation is sorted, it will be good to see how we can do."
Cahill's statement as upset many fans who feel the players are not putting the effort in on the pitch and refer to last season's 6-0 home defeat at the hands of Rotherham United - a defeat that has been widely attributed to the players throwing a tantrum for not receiving an end of term bonus.
The Lions limped out of the Carling Cup last night with a lacklustre 1-0 defeat at home to Oxford United. The manner of the defeat as raised several question marks over the strength of the squad and Cahill's comments couldn't have come at a worse time for manager Mark McGhee as he prepares to take his side to the Stadium of Light at the weekend.