The Spireites' EFL Cup hopes ended at the first round stage again on Tuesday, with Danny Wilson able to see the promise of the evening - as well as the "sloppy" goals conceded.Chesterfield right-back Paul McGinn had given the visitors a half time lead after unleashing a stunning long-range strike, but three second half Dale goals from Ian Henderson, Andy Cannon and Nathaniel Mendez-Liang booked a place in the second round for the Lancashire outfit.
"It's bittersweet, I suppose," said Wilson on the performance from his side. "In one respect I think the first 45 was good, we showed a lot of promise and in that period we attacked very well, we passed the ball very well, we were very secure at the back and we ended up with a fantastic goal from Paul.
"We could have added to it as well, we had a couple of other chances, so really the first half was promising.
"It was down to us to replicate that in the second half, start well and put some anxiety into Rochdale - but we gave away a goal within minutes of the restart. It was a sloppy goal to give away, it was a free header that the boy had and we've got to do better than that.
"The second goal was similar, a weak header comes out of the box and they score the second goal, so really two goals that we could have done a lot better with."
A further worry for the away side at Spotland came with Ian Evatt's second half removal after the centre-back came off worse and bloody after a clash of heads.
"He's had quite a few stitches, I'm not quite sure how many, to a nasty cut on his forehead. It was an accidental clash of heads I think," said Wilson of the defender's injury.
"We're hoping he'll be okay for Saturday, I'm sure that Evo will want to play but we'll have to look at and assess the damage in the next day or two."