I'm not sure I see what you're saying? Deng is a midrange guy who can also post up and play a little bit of power forward. Salmons is probably more naturally suited to playing shooting guard and typically he's been a pretty good spot up shooter from the wings and off of the catch.
But I'm not really sure you could say they are coexisting right now, Salmons has had a horrific start to the season shooting a paltry 34% from the field and 30% from distance.