Ipswich winger Carlos Edwards has called for Town to become more ruthless up front.
Paul Jewell's men banged six past Doncaster two weeks ago but have since scored just one in three matches.
And Saturday saw the Tractor Boys have 20 shots to Portsmouth's eight yet still go down to a 2-0 home defeat by Pompey.
No Ipswich player has hit double figures yet this season, with Jason Scotland their top scorer having claimed nine goals from 23 Championship starts, and Edwards hopes the frontmen can be more prolific.
"At the present time the strikers are not consistent in that way to maybe score in every game or every other game," he said.
"They're not going on a positive run. They will chip in with the odd goal but I think they need to put their heads down, dig deep and give a bit more.
"It helps so much when the strikers put away their chances. Once they score it gives a release to the defenders because it makes our jobs easier.
"I'll say, and I think the manager will continue to say it, we need to be a bit more hardcore, more lethal.
"We need to punish teams. Saturday was a typical example where we should have killed the game off in the first half. But unfortunately we didn't capitalise and find the goal."