Legg Mason star manager and 5.4 percent Yahoo shareholder Bill Miller isn’t interested in some JV or ad deal between Microsoft (NSDQ: MSFT) and Yahoo (NSDQ: YHOO). Miller told Reuters that he wanted to see Microsoft buy Yahoo outright and that it was a “strategic imperative for Microsoft to change its position.” Strategic imperative for whom though? For his own fund or for Microsoft?. As for the Icahn board slate, it’s not clear yet how he’ll vote, though he acknowledged a duty to weigh the candidates. If Icahn is to succeed, getting Miller’s support will likely be key.