Rodgers said: "I don't want to say a particular number but, at the top end of the field, we need that help and support. That might take two or three players to do that. Luis Suarez is my only striker. Samed Yesil behind him is only 18. That is what we have. That is part of the pain and the building process here.
"This season was always going to be one of transition but that doesn't stop us being motivated to fight on. You have to be realistic.
"Look at the money being spent at the top of the table, £80m, and teams that are trying to get into the top four like Tottenham are spending over £50m. It is a big task we have but a task we have to embrace."
Newcastle United travel to Anfield on Sunday afternoon to play Liverpool.