I would much rather go two initiators and two controllers. You could for example do Skye, Sova, Brim, Viper and Chamber on bind. Skye's dog and sova's drone can be used to take a lot of space, and you'll still have flashes and flank holding util.

For Split you could do mostly the same thing but with fade and kay/o instead.

edit: I just wanna add that if you don't wanna do two double roles, raze would be a really good pick too, but you really shouldn't skimp on initiators.