But both are out of contract at the end of this season and have no guarantees of a future with the team beyond this campaign.
Typically seen as the breeding ground of Red Bull talent, the next crop of junior graduates are storming their way through the likes of Formula 2 and 3, knocking on the door of VCARB.
But one man who has fully progressed through the ranks and even driven a Formula 1 race is Liam Lawson, who is in the hunt for a drive after he showed his impressive talents last season.
In the end he was overlooked for a seat this year, but a year with Red Bull as their reserve driver will have given him a chance to learn and should leave him in good stead when he enters the grid.