"It is clear that we need to know our future. I am looking for someone in January to help us and (tell us) that we don't have to sell players.
Ahead of Sunday's FA Cup third-round tie against Arsenal on Sunday, West Ham have also been hit by injuries to Mark Noble, Danny Gabbidon, Herita Ilunga, Kieron Dyer and Cole, while Guillermo Franco is suspended.
Despite the injury woes, Behrami is hoping that a good result against their north London rivals - 30 years after West Ham beat Arsenal to win the 1980 FA Cup - could be a springboard into the new year.
"The FA Cup has arrived for us at a moment when we are struggling in the Premier League and we have a lot of players who are injured so this is not a good moment for us," he said.
"The draw was not very kind to us but we are at home and if we play like a team, we can have a good result. A good cup run could help us in the league."
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