At his pre-race press conference at Homestead, Tony Stewart said that he is "scaling back" the Tony Stewart Racing USAC program for 2010. According to Stewart, they are limiting their USAC program to one sprint car and two Silver Crown cars. In addition, the team will no longer field a midget program or run a USAC pavement sprint car.
Read more about Stewart's statement here, along with what he said about the dismissal of Kraig Kinser from the World of Outlaws team. The natural guess is that Levi Jones stays with the team as the sprint car driver and also runs one of the two Silver Crown cars. I had read rumors that Tracy Hines was leaving TSR, so this means they'll need another driver for the Silver Crown races.