TheStreet: Viacom’s share price spiked upwards Tuesday after Sumner Redstone named two new trustees to a trust controlling his assets, in a move that one activist fund manager believes could drive the ouster of the media giant’s CEO and push the company to recombine with CBS. “I don’t think [Redstone] would want to sell the company given that he doesn’t want to sell a minority stake in Paramount,” said activist Eric Jackson of SpringOwl Asset Management. “One possibility is that he merges Viacom and CBS.”