The Spireites are out of the FA Cup for this season after a "very very poor" display in their 5-0 second round Proact loss to Wycombe Wanderers.
The Chairboys rushed into a two-goal lead thanks to strikes from Paul Hayes and Scott Kashket and after Jon Nolan received a straight red card for a reckless challenge in the second half two more from Kashket and one from Anthony Stewart condemned the Spireites to a heavy home loss.
"It was very very poor," said Wilson of the performance. "We started the game in second gear and we never got out of it quite honestly. We've been bullied for virtually the whole 90 minutes, had a stupid sending off and overall it's been a very poor day from our point of view.
"There have been a lot of home truths spoken in the dressing room. You can fall back on excuses, we do need a bit of help on the pitch, but at the same time certainly some of the performances out there were simply not up to standard.
"They were very aggressive in what they did, maybe limited in some areas, but they played to their maximum and we certainly didn't do that, we've taken a step backwards instead of a step forwards."
Wilson looked for solutions to the afternoon's performance and confessed his surprise at the display after a positive couple of results coming into the Cup tie.
"We need some stronger players in there, that's for sure," he said. "We have one or two players just going through the motions and one or two who have been told they're not coming up to the standards I expect.
"We have one or two younger players who are finding it very difficult at this moment in time so we have to be careful not to lose them. Overall, it's a collective thing, a mix of not doing the things we've been doing in the last two games.
"From the last two games we've played in we were a shadow of ourselves for some reason. When you have a team that's fighting every week it's difficult to get consistent performances, but today was a real surprise for me, that wasn't us at all."