The Blues boss suggested more experience is needed as they look to continue a positive season in England and on the continent.
Frank Lampard has indicated Chelsea will look to sign at least one new attacker in January after having their transfer ban halved.
An appeal to the Court of Arbitration for Sport brought an early end to the original two-window embargo last week, enabling the Blues to become active participants in the transfer market.
An inexperienced squad reached the Champions League last 16 with Tuesday’s 2-1 home win over Lille and could now be reinforced.
There will be discussions that go on from now about where we can strengthen, because of course with Eden leaving we lost a lot of goals, a lot of creation in his particular position.
“What I’m talking about today is that we missed some chances and I think we can probably look at strengthening and pushing and getting maybe more competition in those areas.”
It’s been a little bit the story of our season at times and that’s the biggest thing, for me, we need to improve.”
Abraham has 13 goals this season in all competitions, but he is the only man close to double figures. Behind him is Christian Pulisic who has six and Mason Mount with five, with defensive midfielder N’Golo Kante next in line having scored only three.