"I think we might add in those positions - we might," revealed Villas-Boas. "The sense of urgency in midfield is there.
"We play 4-3-3, we have a squad of 25. For you to prepare for a game, you need at least six midfielders. We only have four.
"But we have the versatility of [Florent] Malouda, for example, and Yossi [Benayoun] who we have been using in the ten and eight positions to a very, very good extent and a very good level."
Recent reports have suggested that Chelsea are preparing to submit a third bid for Croatia international Modric.