Clarke and his team will be looking to bounce back from last weekend's dismal defeat to Plymouth Argyle when they play host to Grimsby Town at Banks’s Stadium this weekend.
The Mansfield-born boss, who hasn't seen his side win since their opening-day triumph over Northampton Town, admitted that he wasn't happy with several aspects of play last weekend and revealed that he hasn’t gone easy on his players during this week's training sessions.
Speaking via the club's official website, Darrell said; "I wasn’t happy. The fans travelled a long way but it’s not about lifting players all the time, it’s about setting standards.
"We weren’t clinical with the ball. Momentum swings in games, and we didn’t make the most of the opportunities. I’m hard on my players and I’m not going to keep saying to them they are a new group.
"They are, but the standards are set high, they always will be from me. I will be looking for a much improved performances and results in the next block of five games."
"We weren’t clinical with the ball. Momentum swings in games, and we didn’t make the most of the opportunities. I’m hard on my players and I’m not going to keep saying to them they are a new group.
"They are, but the standards are set high, they always will be from me. I will be looking for a much improved performances and results in the next block of five games."
The manager then went on to look ahead ot this weekend's clash and is expecting a confident Grimsby side to arrive in WS1 this weekend as the Mariners defeated Port Vale 5-2 in their previous game, but the gaffer insists his team are up for the challenge.
Darrell continued; "We did our five game block and had a meeting with the players where we went through the bits and pieces, the obvious things where we need to improve.
"But it’s not just about our final third play, it’s about the build-up play – making sure that is spot on so we can create more opportunities for the strikers to score goals.
"That has been the main focus this week whilst also making sure we don’t forget the things we have done quite well. Grimsby have had a solid enough start. It is still very early days and teams are still working each other out.
"They will be pleased with the start they have had and they’ll be disappointed their game got abandoned in midweek.
"I’m sure they will come buoyed by their 5-2 win over Port Vale. Like every game in this division, you are going to have to earn the right to play."
"But it’s not just about our final third play, it’s about the build-up play – making sure that is spot on so we can create more opportunities for the strikers to score goals.
"That has been the main focus this week whilst also making sure we don’t forget the things we have done quite well. Grimsby have had a solid enough start. It is still very early days and teams are still working each other out.
"They will be pleased with the start they have had and they’ll be disappointed their game got abandoned in midweek.
"I’m sure they will come buoyed by their 5-2 win over Port Vale. Like every game in this division, you are going to have to earn the right to play."