User blog comment:Rafael002/Elite Force,and,Adam and Leo./@comment-23892062-20150905185349/@comment-26821813-20150907173340

The way i see it, Adam and Leo aren't with Bree and Chase for two main reasons.

1) They might have wanted to get out of the Disney circle and continue with other projects in the near future.

2) The number of the main cast is already 5, (Chase,Bree,Kaz,Oliver,Skylar),so adding two more actors in the main cast wouldn't appeal to the producers.

I believe that it is the first reason as I can't possibly imagine Adam and Leo being left out. It is obvious that was their own decision and there is always the possibility for them to appear as Guest Stars.

Any comments on that theory?