Paul Cook has admitted it is taking longer than anticipated to complete the signing of a couple of his transfer targets.
Chief executive Chris Turner revealed on Monday that hopes were high of being able to announce one or two new arrivals this week, but Cook told Spireites Player that talks are still on-going.
Cook said: "We thought at the beginning of the week that we were making very healthy progress in terms of a signing or two. But when you think you're making progress, all of a sudden you can hit a stumbling block very quickly.
"We're still on with the same ones so the talking goes on and on and on. Our supporters can be rest assured we are very, very close.
"We've got good, realistic targets. I think the likelihood is we're going to sign, before a ball's kicked at the start of the season, a lot more players, hopefully sooner rather than later."
Cook dismissed reports that striker Kristian Ramsey-Dickson, who made a handful of appearances on trial for the reserves last season, had turned down an offer from Chesterfield before joining Alfreton Town.
"He's a smashing player and we certainly wish him the best of luck in his career at Alfreton," said the Spireites boss. "He's a young man who came in on trial, but he wasn't offered any type of terms here."