IAN Holloway is hoping the arrival of striker Stefan Maierhofer on a short-term deal until the end of the season will give him the "right ingredients" up front.
The Lions have completed the signing of the 31-year-old former Austrian international and he could feature in the south London derby against Charlton tomorrow.
Maierhofer, who has been without a club since leaving German second-division side FC Koln at the end of last season, is 6ft8in tall and trained with Millwall on Thursday.
However, Holloway revealed this morning that the Lions are waiting to receive Maierhofer's international clearance ahead of the Addicks' visit to The Den.
"I don't really know whether we'll be able to get him in time," he said. "Any delay won't be because of the paperwork at our end. We've got to chivvy the Germans.
"We need a big one and you don't get much bigger than that. Aerially we are caught between two stalls at the moment, and in every successful team I've had, I've had some big ones.
"When you go 1-0 down and teams go deep against you, which is happening at the moment, you ned a tall striker to threaten their back four.
"If they are bigger than you, and can head the ball out, how can you get round the back of them? There's no space. You have to be able to knock things down and keep it in the box.
"We did not have the right ingredients against Blackpool. If I am trying to bake a cake and I need some raisins to go in it but I haven't got any, I go out and buy some."
Holloway sought a recommendation from Mick McCarthy before snapping up Maierhofer, the Ipswich Town boss having signed the striker for Wolves in 2009.
"Stefan has not played in quite a while but we have had a chance to look at him and I have spoken to Mick about him, and all day long he's putting thumbs up for him," Holloway said.
"It is all about us really and him fitting into what I want. I have called John Marquis back, I liked him anyway and I wanted to get him some experience.
"The boy chases and runs but he's not a Maierhofer, he's more of a battering ram than a big thing that can flick something. It's all about getting the right options.
"As a coach you need to be able to change your team and adjust your tactics. At the moment I'm a little bit hamstrung.
"Steve Morison is very important to us but we need to get him somebody else who can help, and it can't really be Mark Beevers up front, can it?"