Focusrite Scarlett 2i2 Question

Wassup everyone,

I have a MPC Renaissance with Krk Rokit 8 Monitors hooked up to my Macbook Pro 2014 Retina model, and I get the unavoidable crackles and distortion after a while when using Logic Pro because of the whole usb3/usb2 glitch that Akai cannot find a solution to.

So anyway I am thinking of getting a Focusrite Scarlett 2i2 to become my audio interface because it seems that this one plays nice with the whole usb 3.0 issue. [I know this one has less channels but I do not need many]

So my question is how would I set up all my gear to hook up to the Focusrite Scarlett 2i2?

I got my KRK Rokit 8 Monitors hooked up to the Ren which is how I output audio at the moment. I also have an MPK61 hooked up to my Ren.

I still want to use the MPC Ren both Standalone and as a AU inside Logic, I just don't want it as my Audio Interface anymore.

Basically if I were to get this interface how would I get the audio out through my Krk Monitors?

Would I just need to switch the KRK/Ren connection to just KRK/Scarlett 2i2 and then connect the Ren via USB to the laptop in order to use it for producing?

Thanks in advance!