Calderwood Pleased With Forward Line
He praised the new-look forward line, which saw Junior Agogo handed his first start and Neil Harris take on the role of playing behind the front two.
'This was the first penalty miss that has cost us points,' said Calderwood. 'But it is the first one that Grant has missed this season.
'Junior had a fine game, I thought he was a big influence. He obviously won the penalty, he unsettled them, always looked a threat and looked direct. It was a good mixture to add to what we have already got and I thought Neil Harris played very cleverly too, in the role he was in. He put in a mountain of work that will have been unseen by the vast majority.'
Harris was denied a spectacular goal, as he rifled a first-half shot towards the top corner of the net, only to see Carlisle skipper Kevin Gray scramble back to head the ball clear off the line.
'I could see Kevin Gray using his experience to get back, but you could see that Chopper (Harris) was very calm, I knew where he was going to put it, he didn't lash at it, he manipulated the ball,' added Calderwood.
Calderwood felt that Forest could have been awarded a second penalty in the final stages, after both Jack Lester and Agogo went down in the box.
'Jack was certain he was touched,' said Calderwood. 'He got booked for diving but the referee has said he will look at it again. Junior was adamant he was brought down as well.'
Carlisle boss Neil McDonald felt his side gave Nottingham Forest a real scare - and was disappointed that they made the long journey north without three points. 'It is the first time this season that I have been disappointed with a point,' he said. 'I thought we had deserved more than we got.
'We rode our luck a little bit in the first half, but that is the second time in two games that we have dominated the second half. We should have had more than one point I think.
'We didn't get going until they had missed the penalty. But once we did, we were the better team.
'I thought justice was done with the penalty, when the keeper made the save, because it was a little harsh. It was given by the linesman, who was 35 yards away.'