Renault
Renault have scored 34 points in 2017 till now and all 34 have been scored by Nico Hulkenberg. This has left his teammate Jolyon Palmer in a precarious position. In all of this, Palmer is the only one who is actually not winning as he now doesn't have much of a chance to stay in F1.
Renault have consistently been on the lookout for a driver who can complement Hulkenberg and help them develop the car so they can reach the top of the pile as soon as possible. Carlos Sainz ticks all the boxes and provides Renault the driver they always wanted. The 23-year-old can be the catalyst of Renault's resurgence to the top. More than once, it has been reported that he is excellent at giving feedback and that is the thing that Renault expect and need right now.