Two-time Oscar nominee Michael Shannon has been cast as Lakers owner Jerry Buss in Adam McKay's HBO drama pilot about the Showtime Lakers, which is now, understandably, untitled. The series will depict Buss as a self-made millionaire whose success has only amplified his proclivity for risk. Buss redefines American sports, celebrity, and wealth by transforming the Lakers into a basketball dynasty, but his house of cards threatens to collapse on him -- and the people he loves most. McKay has previously cast Jason Clarke as Jerry West, the "cantankerous tortured genius of basketball," per HBO. West ought to …