Chesterfield manager Paul Cook wants his team to be more ruthless in front of goal, even though they boosted their automatic-promotion hopes with a 1-0 home win over Morecambe.
Cook saw his team control the game but they could not add to Jay O'Shea's 19th-minute header which was enough to clinch the points.
Morecambe never seriously tested Tommy Lee in the Spireites' goal although Kevin Ellison gave the home supporters a scare when he shot just wide from 25 yards in the 74th minute.
The hosts should have been out of sight by then with Eoin Doyle twice being denied by ex-Chesterfield goalkeeper Barry Roche early in the second half while, at the other end, Sam Morsy rattled the Morecambe bar with 11 minutes left.
But the victory keeps Chesterfield six points in front of fourth-placed Fleetwood, and Cook said: "We played really well. We dominated possession, moved the ball and created clear-cut chances but unfortunately couldn't get that second goal which would have made it a more comfortable night.
"That was the disappointing thing, not getting that second goal and when we break it down, our Achilles heel is not putting teams away - we know that.
"It's something I try and solve every day and I'm thinking about trying to get (Fernando) Torres from Chelsea but I don't think the chairman is too keen!
"But I thought we had a lot of good performances and it was a very accomplished performance by our lads to win the game and to have a clean sheet."
Cook now turns his attention to Sunday's Johnstone's Paint Trophy final against Peterborough at Wembley, and he admitted: "It's going to break my heart to leave lads off that bench because everyone has families going down.
"Sometimes as a manager you can care too much and I certainly do."
Morecambe manager Jim Bentley admitted his team had been second best to a side he believes will be playing in Sky Bet League One next season.
He said: "Chesterfield are the best side in the league in my opinion and we knew we would have to be at our best.
"It was always going to be a little bit tough but we started brightly and then they got on the front foot and it was a great bit of movement for the goal.
"We had to weather large spells of pressure and although you always fancy yourself to get a chance, overall they were the better side. We stuck at it and the lads gave it their all but we just came up a little bit short.
"We played some all right stuff at times and while it was 1-0 you could sense a bit of nervous edge in the crowd but credit to them, they deserved the win and they will go up this year in my opinion and good luck to them."