Do Chelsea FC really need to sign Radamel Falcao ?

Kalou and Anelka might leave. So we will end up with 3 strikers. Drogba need to leave in January for the cup of Africa ( or whats it called ). So we will end up with 2 strikers for a month. Injuries might happens so I think Falcao would be a good signing. But I agree we need Hulk but his price is way to high..