Aston Villa boss Unai Emery admits he's seeking Ollie Watkins and Moussa Diaby to develop their partnership.
The pair are due to start today against West Ham.
He said: "This is the work we are trying to do every day with both. Of course, we have to add other players doing the same work because I want to build a strong structure defensively and offensively with different players.
For us, Watkins and Diaby are very important. When they are scoring goals, creating chances, exploiting space and giving their capacity in the attacking third, I am very demanding as well with them to help the team defensively in the strong structure I want to create.
They are committed and their performances defensively even is being better than offensively a lot of the time, and that is my idea. That is the demand I want. Then, feeling comfortable doing it, trying to feel defensively and offensively the work we are doing and trying to get their individual objective through the team.
I am very happy when they are scoring, when being relevant players in our squads winning matches."
Emery added: Our way and our method is to analyse collectively, defensively and offensively. We try to work and analyse as couples or groups. Then, try to work individually as well. That is our method with them."