I agree with jes, I think a potential landscape with both Schwarber and Contreras able to play catcher, and share it to variable degree, is interesting and appealing.
The Cubs admin has talked about the value of having guys who can play multiple positions. I perceived that in terms of utility players, or guys who could start at a different position if blocked at their original primary position. (Baez and Russell to 2nd, for example.) But I think what Maddon has been doing lately highlights some value of having guys able to play a couple of spots. I didn't guess Schwarber could catch this soon, adequately; or play LF, adequately. I hardly dreamed that Coghlan could play 2B. That Russell could play very good 2B after only a week practicing there. That Bryant could go out and play LF or CF and do fine. In past we've had starters, and subs/utility guys.
But you always have somebody in a slump, from among the intended starters. Having a bunch of guys who can play several spots means you can play whoever is relatively healthy and hot, and more conveniently rest somebody who's hurt or cold. Quite a nice possibility.