STEVE McClaren wants his Derby County team to be more ruthless in front of goal.
Derby have won both games this season.
They needed a late winner from midfielder Jeff Hendrick to see off Rotherham United 1-0 on Saturday and then defeated Carlisle United 2-0 in the Capital One Cup last night, but had to wait until deep into stoppage time for a second goal, scored by Chris Martin.
The Rams had enough chances to make life easier for themselves, as McClaren pointed out.
"We will get better and the rustiness around goal is something we need to improve on," he said.
"Chris Martin should have scored earlier, but I kept him on to try and get a goal.
"It's good for strikers to score but we need to be more ruthless in front of goal and kill teams off when we get the chances.
"We made hard work of it last night and should have had it finished a lot earlier,"
