He believes the squad as a whole needs to be strengthened.
"We need to strengthen the squad - tonight I had two keepers on the bench because there were no other senior outfield players here," Redknapp said.
"There are one or two lads who are here who want to leave as well, so we went through the numbers tonight and we've probably got about 17 (players) for our 25 man squad. We've got to fill it up a bit.
"We are desperately short in quite a few areas really, we do need some reinforcements."