Hasselbaink told talkSPORT: "When you've signed a striker for £50million you want him to score every game but that is not being realistic or fair.
"If you look at all the top teams in this country they have got three or four top strikers breathing down each other's necks. It's only healthy to have that.
"You have to have competition. You have to have someone who wants to take your place as it gets the best out of you.
"Chelsea should have another top striker like Falcao to compete with Torres."