06:43 AM ET 08.23 | With Brian Vickers expected to rejoin Red Bull Racing next season after undergoing heart surgery, questions are starting to surface about who might get the axe from the team. "Next year we know what the situation is with Kasey. Again, with Brian, we're very hopeful and Scott needs to pick up his performance. And he can," Red Bull GM Jay Frye said. "With Scott, we're coming to the third and fourth race in his career at different race tracks. We need to see some sort of improvement. We need to see where the curve is moving forward in the next few months." Though Speed signed an extension in May, the performance clause of a 16th-place finish in the points could put his Red Bull future in jeopardy as the team preps for Kasey Kahne's one-year stint next season.