Coyle concedes they face a battle to find the right players given his limited transfer budget.
"The differentials are huge. It's like me in my (BMW) X5 parking it next to Jensen Button, and saying I'll give him a race.
"We're still shopping in the same market we were, a different one to anyone else.
"We would love to bring another one or two in to give the lads we've got a boost and bit of freshness when January comes, but finance will dictate that.
"Loans are an alternative, and there might be factors included in that, similar to David Nugent where there was a loan fee and we're paying some of the salary.
"That's something we might have to look at, but ultimately we'll look to bring the right type of player in, whether we think they can help the players we've got, because that is important.
"They're working their socks off day in, day out, and sometimes they need a little bit of help."